September 8, 2012
John Lew photo

In this photo provided by the University of Tulsa, Tulane’s Devon Walker (18) and Julius Warmsley (92), center foreground, tackle Tulsa’s Kenny Welcome during the first half of an NCAA college football game in Tulsa, Okla., Saturday, Sept. 8, 2012. On this play, Walker was seriously hurt.

Tom Gilbert photo

Tulane’s Devon Walker, far left, watches as teammate Zach Davis takes down Tulsa’s Willie Carter during an NCAA colllege football game in Tulsa, Saturday, Sept. 8, 2012. Later in the game, Walker was seriously hurt in a head-to-head collision with a teammate.