Jason Kelce is still awaiting certain details about his brother Travis Kelce's upcoming wedding to pop star Taylor Swift. During Jason's Friday, December 19, appearance on Good Morning America, the former Philadelphia Eagles center was asked about whether he was "prepared" to deliver a best man speech on the big day. "Time will tell if there is one or anything like that," Jason, 37, answered. "I've been given no details on that front, but however I'm involved, I'll be happy to be. I'm just happy for those two.