5 slowest 40-yard dash times in NFL Combine history

#3 - Palauni Ma Sun could not win at 2007 NFL Combine

New Orleans Saints 2007 Headshots Dace Richardson greets fans after a game (Image Credit: Getty Images/Gregory Shamus)

Offensive lineman Palauni Ma Sun was expected to be a late-round gem out of Oregon in the 2007 NFL Draft. At 6'5 319 lbs, he had the type of frame that any team would want on their offensive line, but everything came crashing down at the NFL Combine.

Not only did Ma Sun run a 5.86-second 40-yard dash, which was the worst that year, he basically fell flat in every category and failed to impress scouts in the drills. Ma Sun never made it to an active roster, but was around for the Saints photo day in 2007 and had his head shot taken.

#4 - Dace Richardson was a 2010 NFL Combine dud

Dace Richardson attended the Combine in 2010 as a representative from Iowa but had one of the worst overall outings in recent history. He posted the worst 40-yard dash time that year at 5.76 seconds. He also had one of the worst vertical jumps (23.5), had just 19 reps on the bench press and just looked out of place at the Combine.

#5 - Johnnie Troutman made it to NFL despite slow 40-yard dash

St Louis Rams v San Diego Chargers - #63 Johnnie Troutman

Guard Johnnie Troutman posted one of the five slowest times at the Combine with 5.76 seconds in 2012. He had just the third-worst time in 2012, behind Josh Oglesby. Despite a poor showing, Troutman was still drafted in the fifth round by the Chargers.

He spent some time on the IR list and at the bottom of the depth chart, but eventually became a starter for the 2014 season. Troutman is one of the few examples of a player bombing the 40-yard dash and still having a career.