The Dallas Cowboys will watch their arch rival Philadelphia Eagles play in their second Super Bowl in the last three seasons, yet Troy Aikman believes one key factor will prevent them from reaching the summit once again.

After five Super Bowl appearances in six years from Patrick Mahomes, Travis Kelce and the Chiefs, what once was fresh is now annoying.

If the Eagles win, Saquon Barkley will be a massive part of it. If there were MVP awards given to each playoff game, he would have earned all three of Philadelphia's preluding postseason victories. Barkley has been the engine of the offense all season, but that has only heightened in the playoffs.