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Quarterback Andrew Luck is the headliner at Thursday’s Stanford Pro Day, but tight end Coby Fleener stole the early spotlight by ripping up the track and testing well throughout his workout.

Multiple reports had Fleener running in the mid-4.4s in the forty. ESPN’s Todd McShay had Fleener at 4.45, and so did CBS’ Bruce Feldman.

Mayock’s stopwatch read 4.51, but it’s still a very fast time for a 6-foot-6, 247-pound human being.

“That is flying at 247,” said Mayock. Mayock also reported that Fleener had a 37-inch vertical and broad jump north of 10-feet. “They’re extremely athletic numbers,” Mayock added. “Those are defensive back, wide receiver-type numbers.”

For comparison, Patriots tight end Rob Gronkowski ran 4.65 with the wind and 4.73 against the wind at Arizona’s 2010 Pro Day. Gronkowski is the same height as Fleener, and 11 pounds heavier. But Fleener is much faster in a straight line.

In PFT’s first mock draft of the 2012 offseason, Fleener was the 29th overall pick.