Here's what we knowBuffalo Bills defensive back Damar Hamlin was in critical condition Monday night after collapsing on the field during the Monday Night football showdown with the Bengals.The game was officially suspended about an hour after the incident and about 30 minutes after Hamlin was taken to the University of Cincinnati Medical Center.Hamlin was removed by ambulance at 9:25 p.m. and taken to the University of Cincinnati Medical Center, where he was in critical condition, the National Football League said in a statement.In September, Dolphins quarterback Tua Tagovailoa was taken by a stretcher to UCMC after he suffered a concussion during a Thursday Night Football matchup.He knows people that have died or whatever but at the end of the day he’s about football, he’s a good person, and he’s going to be a good pro.”When he first entered the NFL, Hamlin knew that he wanted to start his own foundation as a way to give back to his community, and he formed the Chasing M’s Foundation."