With the first round of interleague play in the books, teams return Monday to the business of league play, including a couple of important American League matchups. All times Eastern.
7 p.m., ESPN2, NESN, STO: Red Sox at Indians. The Tribe has the best record in baseball after sweeping a series over the Reds. The Red Sox trail the Yankees and Rays by only half a game. There's national coverage via ESPN2 as well as the local broadcasts.
7 p.m., YES Network, RSN: Blue Jays at Yankees. The entire American League East is separated by only four games; Toronto trails by just 2.5 and has a chance to creep up the ladder.
10 p.m., KCOP, CSN California: Athletics at Angels. The AL West is even tighter than the AL East; just two games from top to bottom. This game features the second and fourth place teams -- but that could change by the end of the night's action.