Arkansas' Mike Washington Jr. in tears after posting fastest 40-yard dash among running backs

After learning that he ran a 4.33 in the 40-yard dash at the NFL scouting combine, Arkansas running back prospect Mike Washington Jr. couldn't hold back tears.

"I'm so emotional, man. I worked my entire life for this," Washington told NFL Network's Stacey Dales.

Washington's 40-yard dash time led all running backs in a year of the fastest running back group in combine history, according to ESPN's Adam Schefter. At 6-foot-1, 223 pounds, speed has always been a big part of Washington's skill set.

The Athletic's Bruce Feldman ranked Washington No. 20 on the revised combine edition of his "Freaks" list.

"I hear he should run the 40 in the 4.4s," Feldman wrote. "Someone described him as 'super explosive' and said he will be in the running for pound-for-pound tester among the running backs."

Washington rushed for 1,070 yards and eight touchdowns last season. He also had 28 catches for 226 receiving yards and a touchdown. His rushing yards, receiving yards and rushing touchdowns were all career highs.

He spent three seasons at the University of Buffalo and one at New Mexico State before transferring to Arkansas.