"It was very, very hard to watch," the retired NFL player said of his younger brother's Chiefs falling to own his former team, the Philadelphia Eagles

Travis Kelce acknowledged how his brother refuses to take credit, but the Chiefs star argued that Jason Kelce did play a significant role in terms of laying the foundation, so to speak, for the Eagles during his iconic 13-year tenure with the franchise.

The Chiefs tight end, who apologized to the team's fans for his shortcomings in the Super Bowl, said before the game that he hoped to keep playing for the next three years. That plan might change, however, as Kelce talked about retirement and what could lead to that.