Diary of an NFL player: Delanie Walker chronicles week leading up to Bills game

Titans tight end Delanie Walker is getting ready for the Buffalo Bills to come to town.

Walker, who is one of rookie quarterback Marcus Mariota's safety valves, has 10 catches and 111 yards and a score in two starts this season.

As he gets ready for the Bills on Sunday, Walker is going to take us behind the scenes of his week of preparation.

Check out the videos below to get a behind-the-scenes look at how NFL players get ready throughout the week.

DAY 1 -- RISE AND SHINE

DAY 2 -- HITTING THE COLD TUB

DAY 3 -- SHAKING OFF THE DAY OFF