PHILADELPHIA — Eagles center Jason Kelce told teammates after the playoff loss to the Tampa Bay Buccaneers that he plans to retire, according to league sources confirming an ESPN report. The 36-year-old was emotional Monday in the closing moments of the 32-9 loss at Raymond James Stadium and declined to speak to reporters in the locker room. “No, guys,” Kelce said as he headed toward the exit. “Not today.” Kelce told The Philadelphia Inquirer he has yet to make his retirement official, but the writing was on the wall as the Eagles processed the end of the season. The ESPN telecast showed Kelce…