First there is a simple solution.. don't allow the teams to provide balls. Make it the domain of the refereeing staff.
Second, making jock vs geek jokes in TFA or TFS is insulting. Bullying is real and has very real consequences. I was subjected to the joked about circumstance and worse. I am no social justice warrior, but making light of a real and painful thing - one that still occurs in various forms today - only enables those that bully more easily abuse.
Oh, and of you think that it is a simple schoolhouse occurrence that we grow out of, I beg to differ. I took my pain out on those weaker than I, as do others, and bullying mentalities continue into adulthood, all you have to do is look at domestic abuse cases, or the modern police force for plenty of examples.