Answer: Many sports celebrities make poor decisions and become involved in public scandals.
Step-by-step explanation:
A counterargument is an argument that is put forward by someone in order to oppose what soemone else said. A counterargument is usually used when someone doesn't agree with an idea or statement.
In this case, the best counterargument to the claim that sports celetbrities are good role models is that many sports celebrities make poor decisions and become involved in public scandals.
There have been numerous cases of sport celebrities involved in sex scandal, fighting, drinking and other vices.