Out of the four Rottweiler we've had...Baxter is the only one that catches anything. All of them would catch food if you threw something good at them...but as far as catching a ball or toy.....only him.
Two were rescues....and I think they really never learned to play...and the other suffered from HD, and never really got to have too much fun.
Even Baxter get's bored after retrieving a ball or Kong-on-a-rope after 4 or 5 throws.
I've never thought of Rottweilers as being a breed for catching and retrieving.
Gina