I know there's a difference between professional leagues and NCAA, but Canadian teams (MLS, NBA, etc.) have been able to travel into the States just fine, even with non-essential travel bans between the two countries. Europe travel bans are only *into* Europe, so that helps in this scenario.
What's more unsettling in the collegiate front are the international students who may be forced by ICE to go back to their home country if the university is only offering online courses in the Fall semester.