FAYETTEVILLE — Arkansas running back Knile Davis told the media in Indianapolis late last week he had “something to prove” at the 2013 NFL Scouting Combine.

Two days later, Davis had to feel good about his results.

Davis turned in one of the top workouts at the NFL Combine to date, wrapping up a solid week with an impressive performance in on-the-field testing Sunday. It was highlighted by his 40-yard dash time, which was clocked at 4.37 seconds.

The time was the second-fastest among the group of running backs at the NFL Combine. It also was the fifth-fastest time posted at the event so far this year, with defensive players scheduled to workout Monday and Tuesday.

“I think the thing that sets me apart is the size, speed, agility combination,” Davis confidently told reporters in Indianapolis last Friday. “I think that is a rare combination that you just don’t find every year. The guy I really compare myself would be more of an Arian Foster, Adrian Peterson. Arian Foster with the zone running. I’m really good at running the zone and just the size and speed of Adrian Peterson.”

Davis also notched solid test scores in the vertical jump (39 inches) and broad jump (121 inches) Sunday.

It followed a strong performance in the weight room Saturday, when Davis bench pressed 225 pounds 31 times. It ranked second among running backs and 14th overall so far through the NFL Combine.

“He repped out 31 times at 225. At 227 pounds he’s running the 4.3 range?” NFL Network analyst Mike Mayock said Sunday. “I mean, he’s going to open some eyes and force people to go back and really, really peel back the layers here and find out what kind of kid he is and how high can this push him up. That’s really going to be the key.”

Testing has never been a problem for Davis, who joined quarterback Tyler Wilson and wide receiver Cobi Hamilton as former Razorbacks who worked out Sunday.

Wilson got his chance to compete with other quarterbacks in the 2013 draft class, participating in skill drills and other on-the-field work. Wilson ran the 40 in 4.95 seconds, recorded a 28.5-inch vertical jump and 112 inch broad jump.

Hamilton wrapped up testing as well. The receiver, who is projected as a second- or third-round pick, ran the 40 in 4.56 seconds, notched a 29.5-inch vertical jump and 107-inch broad jump in his final day at the NFL Combine.

Davis turned the most heads. But the one question his combine workout couldn’t answer is durability.

Davis has endured numerous injuries throughout his football career, including the fractured ankle that sidelined him for 2011. He ran for 1,322 yards and 13 touchdowns as a sophomore in 2010, but his draft stock dropped last season after running for a subpar 377 yards and two touchdowns.

Davis told reporters at the NFL Combine this week the 2012 season wasn’t what the Razorbacks expected.

But he said the adversity was a learning experience.

“When you go through hard times, you learn a lot and you kind of appreciate it,” Davis said. “You learn to appreciate it and I definitely took this season as a loss and hope to get better.”