I think this is an interesting question that I have. We are commanded to not work on Sunday, yet the Olympics has events on Sundays in which athletes, employees of the Olympic committee, and the media work. Is it immoral for athletes to compete in events, as work, on Sunday? For media to report on such events live? Furthermore, should Catholics avoid watching the Olympics on Sunday since it sends the message that we accept people working on Sunday?
This can also be applied to the NFL/Super Bowl and other athletic competitions.