Finishing in last place of your fantasy football league can have some brutal consequences, as evident by Luke Combs’ Saturday concert at Paycor Stadium in Cincinnati. Forget the 24-hour Waffle House challenge or the stand-up comedy routine, Combs’ league decided that the last-place finisher would have to perform on stage at one of his shows. In this case, there were two losers — each best friends of Combs since high school. “I’ve been in a fantasy football league with some of my best friends from high school for 12 years now,” Combs told the Cincinnati crowd. “And last year, we decided that wh…