One of the best ways to be better at your sport is simply to be stronger.
Almost all sports require some form of weight lifting because as the sports get more and more competitive, every athlete is looking for that edge to be the best.
I remember Dwayne Wade, Dwight Howard, and LeBron James, are incredibly strong guys.
You can tell just by looking at them.
Sure, conditioning, drills, and isometric training have their places in your training regimen, but to really become a stronger athlete, nothing beats good old fashion weight lifting.