UEFA Champions League: Giants fall on upset-loaded Wednesday

FC Porto vs. Dynamo Kiev, 2012 UEFA Champions League: Final score 3-2, Jackson Martinez score two in Porto win

Jackson Martinez scored twice to lift Porto past Dynamo Kiev in a Champions League barnburner.

Malaga vs. AC Milan, 2012 UEFA Champions League: Final score 1-0, Joaquin fires Malaga to win

Joaquin made up for his missed penalty in the first half with a second half goal that upended AC Milan.

Arsenal vs. Schalke, 2012 UEFA Champions League: Final score 0-2, Königsblauen complete dream week

Schalke have had one of the best weeks in their recent history, while Arsenal have had one of their worst. Die Königsblauen followed up their derby win with a win at the Emirates.

Borussia Dortmund vs. Real Madrid: Final score 2-1 as Casillas error gifts BVB win

Some poor goalkeeping from Iker Casillas handed a win to Borussia Dortmund, but it was a well-deserved win on the balance of play.

Montpellier vs. Olympiakos: Final score 1-2, Poor defending late dooms Montpellier

Olympiakos took advantage of awful defending from Montpellier, scoring two late goals to get a big away victory

Dinamo Zagreb vs. Paris Saint-Germain: Final score 0-3, PSG cruises to an easy victory

PSG wasted more chances than they finished, but Zagreb's lack of attack allowed the French side to cruise to an easy victory

Ajax vs. Manchester City, 2012 UEFA Champions League: Final score 3-1, Citizens all but out of the competition

Manchester City are all but out of Champions League, thanks to their disastrous performance against Ajax in Amsterdam.

Malaga vs. AC Milan, 2012 UEFA Champions League: Halftime score 0-0, No score in Spain

Max Allegri sent his AC Milan team out in what appeared to be an attacking 3-4-3, but true to current form, it instead morphed into a conservative 5-4-1 and Milan spent much of the first half on the back foot as Malaga grabbed control. Luckily for Milan, Joaquin hit the crossbar on a penalty and the visitors are still scoreless at the break, but Milan will have to get better or Malaga will surely come away with three points.

Milan only had one really good foray forward and it resulted in Stephan El Shaarawy getting a golden opportunity off of a pass from Urby Emanuelson, but the 19-year-old couldn't convert.

Otherwise, it was all Malaga. Isco pulled the strings and showed why he is one of the world's brightest young midfielders. The Malaga fullbacks pinned Milan back and Joaquin and Javier Saviola found room in the box to cause problems for the Milan defense and only some misfortune, as well as the missed penalty, kept Malaga from going in front.

Ajax vs. Manchester City, 2012 UEFA Champions League: Halftime score 1-1, Siem De Jong levels before the half

For the third Champions League game in a row, Manchester City will fail to keep a clean sheet. They exploited a porous Ajax defense early on, but fell asleep in the closing minutes of the first half and conceded, allowing Ajax to equalize and send the match into halftime tied 1-1.

Ajax have had more of the possession, while City have attempted to play on the counter. Their goal came from Samir Nasri, who finished off a quick move started by Micah Richards. The City right back found James Milner in the center, and he laid out wide for Nasri, who placed an exquisite finish past Kenneth Vermeer.

Siem De Jong both scored and started the move to create Ajax's 45th minute equalizer. From deep in midfield, he sprayed a ball out wide to Ricardo van Rhijn, who played a low cross into the box. De Jong made a perfect run that wasn't tracked and placed an impressive finish past Joe Hart at the near post from 15 yards out.

Malaga vs. AC Milan: Lineups

Malaga will be looking to prove their strong start to the Champions League is not a fluke as they face their apparent biggest rival in the group. Milan have been up and down this year and will be looking build off their win over Zenit.

Malaga's main adjustment in Ignacio Camacho dropping from the midfield to fullback with Nacho Monreal unavailable to to injury. Otherwise, it's essentially the same lineup that has rolled through Malaga's first two Champions League matches.

Milan have switched up their lineup to a 3-4-3 formation in an apparent attempt to shake things up a bit apparently. Stephan El Shaarawy, the youngest ever UCL goal scorer for Milan starts up front and will be looking to build on his solid performance against Zenit earlier in the month.

Malaga starting lineup (4-2-3-1): Willy; Jesús Gámez, Weligton, Martín Demichelis, Ignacio Camacho; Joaquín Sánchez, Manuel Iturra; Eliseu, Isco, Francisco Portillo; Javier Saviola.

AC Milan starting lineup (3-4-3): Marco Amelia; Daniele Bonera, Philippe Mexès, Francesco Acerbi; Mattia De Sciglio, Riccardo Montolivo, Massimo Ambrosini, Kévin Constant; Urby Emanuelson, Giampaolo Pazzini, Stephan El Shaarawy.

Porto vs. Dynamo Kiev: Lineups

James Rodriguez starts for Porto as they host Dynamo Kiev in Portugal.

Ajax vs. Manchester City: Lineups

This one is pretty simple. City need a win and Ajax can all but ruin the English club's Champions League campaign by denying them full points.

Roberto Mancini has rewarded Edin Džeko with the start after his recent excellent form that included two late goals in City's comeback win over West Brom on the weekend. No major surprises otherwise, though Samir Nasri will have the job of filling the role left by the injury to David Silva.

Ajax role out the exact same lineup they've used in their first two Champions League matches, with the former Liverpool man Ryan Babel leading the attack.

Ajax starting lineup (4-1-4-1): Kenneth Vermeer; Toby Aldenweireld, Niklas Moisander, Daley Blind, Ricardo Van Rhijn; Christian Poulsen, Christian Eriksen, Siem De Jong, Lasse Schöne; Tobias Sana, Ryan Babel.

Manchester City starting lineup (4-2-3-1): Joe Hart; Micah Richards, Vincent Kompany, Joleon Lescott, Gaël Clichy; James Milner, Gareth Barry; Samir Nasri, Yaya Touré; Sergio Agüero, Edin Džeko.

Zenit St. Petersburg vs. Anderlecht, 2012 UEFA Champions League: Final score 1-0, home side steals three points

A lackluster Zenit side won a penalty to grab a much needed three points from Anderlecht.

Arsenal vs. Schalke 04: Lineups

Arsenal are coming off a shockingly poor 1-0 loss at Norwich City in the EPL, so they'll need to get things turned around quickly against a Schalke side that is flying high after taking down their rivals Borussia Dortmund on the weekend.

Arsene Wenger has made a couple changes from the side that beat Olympiakos 3-1 in their last Champions League. Laurent Koscielny has been dropped in favor of Per Mertesacker, a move that should bother no one. Aaron Ramsey gets the start in place of Alex Oxlade-Chamberlain and Kieran Gibbs is replaced at fullback by André Santos. Hard to really find any fault with those decisions.

For Schalke, Kyriakos Papadopoulos, Julian Draxler and Teemu Pukki, all of whom started in the 2-2 draw with Montpellier, have been dropped. Joël Matip, Jefferson Farfán and Ibrahim Afellay take their spots.

Arsenal starting lineups (4-2-3-1): Vito Mannone; Carl Jenkinson, Per Mertesacker, Thomas Vermaelen, André Santos; Francis Coquelin, Mikel Arteta; Aaron Ramsey, Santi Cazorla, Lukas Podolski; Gervinho

Schalke 04 starting lineups (4-2-3-1): Lars Unnerstall; Atsuto Uchida, Joël Matip, Benedikt Höwedes, Christian Fuchs; Marco Höger, Roman Neustädter; Jefferson Farfán, Lewis Holtby, Ibrahim Afellay; Klaas-Jan Huntelaar.

Borussia Dortmund vs. Real Madrid: Lineups

Karim Benzema and Mesut Özil start for Real Madrid as they take on Borussia Dortmund.

Zenit St. Petersburg vs. Anderlecht: Lineups

Zenit spent a ton of money in the summer to bolster their side for the Champions League. Unfortunately, the move hasn't paid off and the Russian side is desperate for three points today against Anderlecht.

Luciano Spalletti has only made one change from the side that lost to AC Milan in the last round of group stage matches. Sergei Semak replaces Vladimir Bystrov in the midfield, but it shouldn't change the team's shape at all.

Anderlecht got hammered their last time out in the Champions League by Malaga, but there are only two changes to the lineup. Dieudonné Mbokani is out injured and has been replaced by Tom De Sutter. Massimo Bruno was dropped in favor of 18-year-old Dennis Praet. For American fans, Sacha Klejstan fails to make the starting eleven for the second straight Champions League match, but he is on the bench.

Zenit St. Petersburg starting lineup (4-3-2-1): Vyacheslav Malafeev; Aleksandr Anyukov, Domenico Criscito, Nicolas Lombaerts, Tomáš Hubočan; Roman Shirokov, Sergei Semak, Axel Witsel; Viktor Fayzulin, Hulk; Alexsandr Kerzakhov.

Anderlecht starting lineup (4-5-1): Olivier Deschacht; Guillaume Gillet, Bram Nuytinck, Cheikhou Kouyaté, Marcin Wasilewski; Dennis Praet, Lucas Biglia, Kanu, Milan Jovanović; Tom De Sutter.

FC Porto vs. Dynamo Kiev, 2012 UEFA Champions League: Preview and TV schedule

The Dragons will expect to maintain their perfect record against Dynamo Kiev on Wednesday.

Dinamo Zagreb vs. Paris Saint-Germain, 2012 UEFA Champions League: Preview and TV schedule

Don't expect Dinamo Zagreb to grab their first points of the competition against Paris Saint-Germain.

Montpellier vs. Olympiakos, 2012 UEFA Champions League: Preview and TV schedule

Both sides are in desperate need of all three points to keep pace with Group B's leaders.

Arsenal vs. Schalke 04, 2012 UEFA Champions League: Preview and TV schedule

Schalke are flying high after a derby win, while Arsenal disappointed their fans in an upset loss this weekend. Could both sides' fortunes get reversed on Wednesday?

Borussia Dortmund vs. Real Madrid, 2012 UEFA Champions League: Preview and TV schedule

Can Madrid and Dortmund overcome their injury troubles to live up to the marquee billing of their match?

Zenit St. Petersburg vs. Anderlecht, 2012 UEFA Champions League: Preview and TV schedule

Zenit have no points from their first two matches and are in dire need of a victory over Anderlecht.

Ajax vs. Manchester City, 2012 UEFA Champions League: Preview and TV schedule

Manchester City will attempt to get their Champions League campaign back on track as they travel to Ajax looking for their first group stage win of the season

Malaga vs. AC Milan, 2012 UEFA Champions League: Preview and TV schedule

Malaga have begun their Champions League campaign with a perfect record, but they'll face their toughest test yet against AC Milan.

UEFA Champions League: Wednesday's marquee match altered by numerous injuries

Real Madrid and Borussia Dortmund have a number of key players facing battles to get fit before their big match. Two of the other three groups also feature their top two teams facing off on Wednesday.