The opening ceremony has yet to take place, but the action is well underway in London.

On Wednesday, ladies football kicked off group play, and on Thursday, the men will get their chance to make an impression. 

Men's Olympic football is quite a bit different from women's. While the female squads are composed of the nation's best overall players, the men's tournament showcases the youngsters.

Countries are allowed to carry three players of any age, but other than those exceptions, it's only players 23 and younger.

That doesn't mean there's a lack of talent on the men's side, though.

It's becoming quite apparent that some of the best players in the world are barely two decades old. For example, Lionel Messi, the world's top player by far, was a part of the Beijing Games in 2008. 

It may not be the World Cup or Euro Cup, but you don't want to miss this tournament. Let's take a look at the first day of action. 

Olympics Schedule for Thursday, July 26

All times EDT

Group D: Honduras vs. Morocco at 7:00 a.m. 

Group B: Mexio vs. South Korea at 9:30 a.m.

Group D: Spain vs. Japan at 9:45 a.m.

Group A: UA Emirates vs. Uruguay at noon

Group B: Gabon vs. Switzerland at 12:15 p.m.

Group C: Belarus vs. New Zealand at 2:45 p.m.

Group C: Brazil vs. Egypt at 2:45 p.m.

Group A: Great Britain vs. Senegal at 3:00 p.m.