He reminds me of Fred Taylor.
Not his game or his style or build, but when Fred Taylor joined the league, he just looked soo good, fast, strong and athletic, and when he was injured in his early days, I remember thinking that the human bones/tendons etc. that hold us together weren't meant for that kind of performance. Like a Ferrarri always in the shop.
Walker looks like that. The speed and strength and torque, I am ready to believe his human cartilage and tendons cannot keep up with what his muscles are capable of.
Guy probably east 3 Filet-O-Fish a day, and has 6 pack abs.