Walker is returning from arthroscopic knee surgery for the second time in two summers. He has acknowledged that his recent left knee scope was more serious than the one on his right knee that limited his production last season.
The Titans' versatile new weapon believes it will take a few weeks before he feels "normal" again.
"The toughest thing for me will be to get in football shape," Walker said last week, via the Tennessean. "I condition every day, but it's not the same as blocking someone or trying to run from somebody."
In addition to Walker, the Titans welcomed back Kenny Britt to the lineup in Saturday's 27-19 preseason loss to the Cincinnati Bengals. Britt had been dealing with soreness in his surgically repaired knee.
Even if Walker and Britt enter the season at less than peak form, it's a positive sign that Jake Locker now has a full complement of weapons at his disposal.