Posted by ESPN.com's Tim Griffin
NORMAN, Okla. -- Former Oklahoma center Jon Cooper joked that he's been eating like Olympic gold-medal swimmer Michael Phelps the last few weeks as he tries to bulk up for the NFL draft.
Cooper was among 19 former Sooners who showed their stuff for NFL scouts as they gauged their pro potential.
His recent calorie binge is understandable, considering that Cooper was stricken with strep throat late in the season, diminishing his weight to 255 before the Texas A&M game on Nov. 8.
"I had to push the calories quite a bit because the combine was only a few weeks after the Shrine Game," said Cooper, who is now back at his regular playing weight of 290. "I worried about it a little bit, but I ran at that weight for two years. I think I felt pretty good at it."
It helped Cooper to clock a 5.1 and 5.09 in two 40-yard dashes, giving him presentable times for prospective centers.
The fastest Sooner was wide receiver Quentin Chaney, who clocked a 4.59 and a 4.62 in the 40-yard dash times. Defensive back Brett Bowers ran a 4.62 and 4.63. Lendy Holmes ran a pair of 4.65s and former Oklahoma running back Jacob Gutierrez ran a 4.69. No other player who was tested ran faster than a 4.7.
Safety Nic Harris, who was measured at a shade over 6-2 and 232 pounds, was clocked at 4.84 on both of his 40-yard dashes. Those times and his side are making scouts consider him universally as a linebacker after a one-game stint at the position in college.
"I'm always up for a challenge and I'm trying to learn extremely quick," Harris said. "I think I'm doing well."
Harris said he doesn't make much of those who discount him because of his perceived lack of speed for those at his position.
"At the end of a day, I'm a football player," Harris said. "Last I checked I've never seen a guy with a stop watch on Sundays trying to see how fast a guy can get to the ball."