With their three-point lead and big goal differential advantage, Colombia are almost certainly through to the knockout rounds of the World Cup as Group C winners. But their top spot isn't guaranteed, so they'll at least give a decent fight to Japan, who need to win (4 p.m. ET, ESPN).
Japan have just one point and one goal scored thus far, so they'll need more than just a win and a draw by the Ivory Coast and Greece to get through. They're lucky that they have a better goal differential than Greece, so a win by them and a Greece win will probably see them through, though absolutely nothing is guaranteed between the three sides fighting for Group C's second knockout stage spot.
Live in the USA? You have more than one option for watching the game online. Assuming you have access through your TV or internet provider, the Watch ESPN app is where to go to watch the game in English. They'll also have a tactical camera and Portuguese audio. If you don't get access to Watch ESPN or just like watching the games in Spanish, Univision En Vivo is the place to go.
The game will be on BBC Player in the UK and CBC Sports in Canada. You can check out listings for other countries as well at Live Soccer TV.