unfortunately video is blocked in germany cause of copyright issues.
i never said that bigger muscles or more strength make you worse at sports. it of course makes you better at the most sports. but i still think that you can reach a point, where you are too huge for some sports. for soccer it is like that. there are some players that are too huge and then you see that they suck at some movements. the best muscular players are very strong and huge, but they are way smaller than an elite bodybuilder.
if you would still be able to be a good soccer player with a bodybuilder body, then there would be players with bodies like that, cause more muscle mass could give you an advantage as a defender or striker.
I probably didn't explain myself very clearly.
What I mean is, just because an elite bodybuilder won't make a good soccer/rugby/whatever player, doesn't mean training to get stronger and bigger is not good for sports.
Soccer (I call it football, due to the ball being round, and the need to use your "feet". In avoidance of doubt, this is a tongue in cheek dig at those across the pond). Anyway, Soccer is generally way behind with strength & conditioning. It's painful. Same with Boxing and mma. It's definitely improving but it's so slow. I'm not aware of any soccer players who are "too big", though - i've seen a lot that have more bodyfat than they probably should, but none with too much muscle. I'm not sure i've even seen a soccer player with as much muscle mass as the average sprinter. I'm not saying they should have but, it makes you think about the "slowing down" thing.
A soccer play will never look a competing bodybuilder because they have too much soccer training to do. When the soccer player is doing sport specific training and conditioning, the body builder is doing even more bodybuilding training (plus, eating the soccer players weekly intake in about 1 day). For a soccer player to even stand a chance of having a glimmer of hope at being a competitive bodybuilder at a decent level, they would need to give up soccer. And if a bodybuilder decided to take up Soccer, they would need to sacrifice a lot of their current training in place of sport specific training. I'm pretty much saying it's near impossible for a soccer player to train for soccer and get "too big" at the same time. It would take something very special, anyway... Almost going back on this statement because I like to believe nothing is impossible.
I actually agree that you can hit a ceiling when training Strength for sport specific performance. You shouldn't train a soccer or rugby player for a powerlifting competition - there's definitely a line. It's just very difficult get there, it takes years.
Most soccer (and rugby) players would have much better conditioning if they just got stronger. If the program was specific enough, they would have fewer aches and pains, too.
Also, re-reading this, I don't want to create the wrong impression - I DO think most athletes need to get stronger and if that means more muscle mass as a result, then so be it (some can't afford more muscle mass if they are sticking to a weight class). However, I wouldn't train an athlete like a bodybuilder - there's a crazy thought process that anything involving resistance training, strength, or hypertrophy means "bodybuilding" however bodybuilding is a sport/art in itself and should be trained as such.