Asunto: CONCACAF Gold Cup

Well, when you look at U. Bolt, T. Gay, possibly 2 fastest men onearth, then they are pretty muscular.

True. But they only need to run 100 or 200 meters before being able to rest again for a long time. A football player usually run about 10 km in a match so comparing them to middle or long distance runners makes more sense in my opinion.

True. More muscles = more oxygen needed to use them at max = fast exhaustion.

but more acceliration/power/strength

Yeah, if you wanna be a Heskey type of striker you can start living at a gym. If you wanna be Messi-like, then...not really ;).