The Philadelphia Eagles have signed Pro Bowl defensive tackle Fletcher Cox to a six-year, $103 million contract. It runs through the 2022 season. It includes $63 million guaranteed. It's the biggest guaranteed amount for a non-quarterback in NFL history. Cox, 25, recorded 9 1/2 sacks last season as a defensive end operating in a 3-4 scheme. Cox is going to shift to defensive tackle in a 4-3 defense. Follow me on Twitter: @AaronWilson_NFL Aaron Wilson covers the Texans for The Houston Chronicle.