If Jamal cannot play football, it will probably be a NFL decision, not a federal court decision.
Courts impose bond and bond conditions to a) insure defendant's appearance in court and/or b) to protect the public from defendant.
In Jamal's case we know he can post bond. I think it is highly unlikely that the bond conditions would include his being limited in travel given the low risk of flight I presume he poses. Similarly, he does not pose a significant threat to the public so he will probably be free to go where he wants.
That being said, he will not be practicing as his trial goes on and for that reason alone I would think it unlikely that he will play football until the whole thing is over.
It just occurred to me that his value could be low enough to get him for cheap right now.