R’ Berel Wein said that without sports, we would have Pogroms in America.
Nothing wrong with following a sport and enjoying the thrill of professional athletes perform.
But Davening for them is a different story.
It kind of cheapens the connection we have with Hashem when you attend a Tehilim rally for some terrible situation, and then you go and ask Hashem to please let the Packers lose the next 4 games so the Bears have a shot at the NFC Central.