The NFL Combine gets going this week, and while player interviews might be the most important part of the event in terms of draft position, the 40-yard dash is undoubtedly the star of the show.
Here's a look at the 14 players who have the fastest 40 times, according to the official data from the NFL's website, which goes back through 2006.
1. Chris Johnson: 4.24, 2008
College: As a senior at East Carolina, Chris Johnson racked up 2,960 all-purpose yards and 24 touchdowns.
NFL: Johnson was selected by the Titans with the 24th overall pick in the 2008 NFL Draft. He was nicknamed "CJ2K" in 2009, when he rushed for 2,006 yards, and appeared in four games for the Cardinals in 2016.
2. Dri Archer: 4.26, 2014
College: Dri Archer played running back at Kent State, and had his best statistical season as a junior when he tallied 1,990 yards from scrimmage and 20 TDs.
NFL: Archer appeared in 20 games for the Steelers primarily as a kick returner in the 2014 and 2015 seasons.
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3. Marquise Goodwin: 4.27, 2013
College: Marquise Goodwin didn't put up crazy numbers in any of his four seasons at Texas, but his 40 time helped him become a third-round pick in 2013.
NFL: Goodwin turned in his best season as a pro in 2016, when he finished with 431 yards receiving and three touchdowns in 15 regular-season appearances. He was targeted 68 times, but ended up with just 29 receptions.
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T-4. Jacoby Ford: 4.28, 2010
College: In his senior season at Clemson, Jacoby Ford finished with 901 yards from scrimmage and eight touchdowns. The Raiders selected him in the fourth round of the 2010 NFL Draft.
NFL: Ford played for the Raiders for four seasons from 2010-2013, but never did better statistically than he did in his rookie year, when he amassed 625 yards from scrimmage and four touchdowns.
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T-4. DeMarcus Van Dyke: 4.28, 2011
College: DeMarcus Van Dyke played defensive back for four seasons for the University of Miami, and was selected by the Raiders in the third round of the 2011 NFL Draft.
NFL: Van Dyke's professional career was fairly short-lived. After appearing in 14 games at cornerback for the Raiders in his 2011 rookie season, he played in just 11 games total for the Steelers over the next two seasons.
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T-4. J.J. Nelson: 4.28, 2015
College: J.J. Nelson attended the University of Alabama-Birmingham and was selected by the Cardinals in the fifth round of the 2015 NFL Draft.
NFL: Nelson finished with 651 yards from scrimmage and seven touchdowns for the Cardinals last year in his second NFL season.
T-7. Yamon Figurs: 4.30, 2007
College: Yamon Figurs played wide receiver for three seasons at Kansas State before being selected in the third round of the 2007 NFL Draft by the Baltimore Ravens.
NFL: Figurs was a solid kick returner for the Ravens in his 2007 rookie season, but his production fell off a cliff in year two, and he bounced around for the next two seasons without ever regaining his form.
T-7. Darrius Heyward-Bey: 4.30, 2009
College: Darrius Heyward-Bey finished with 811 yards from scrimmage and six touchdowns in his senior season at Maryland, but the Raiders still selected him with the seventh overall pick in the first round of the 2009 NFL Draft.
NFL: Heyward-Bey has never tallied 1,000 yards receiving in an NFL season, but he's settled into a reserve role with the Steelers over the past three seasons, and was targeted 19 times in 2016 while finishing with three touchdowns.
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T-7. Tye Hill: 4.30, 2006
College: Tye Hill played defensive back in his senior season at Clemson and finished with just 35 tackles and three INTs. But he impressed enough for the Rams to take him with the 15th overall pick in the first round of the 2006 NFL Draft.
NFL: Hill appeared in all 16 games in his rookie season with the Rams, and finished with three INTs. But his production declined from then on, and he was out of the league after the 2010 season.
T-10. Tyvon Branch: 4.31, 2008
College: Tyvon Branch was a defensive back for four seasons at the University of Connecticut before being selected by the Raiders in the fourth round of the 2008 NFL Draft.
NFL: Branch started five games for the Cardinals in 2016, in what was his ninth NFL season.
T-10. Jonathan Joseph: 4.31, 2006
College: Jonathan Joseph played his final two college seasons at the University of South Carolina and was selected by the Bengals with the 24th overall pick in the first round of the 2006 NFL Draft.
NFL: Joseph started 11 games for the Texans in 2016 in his 11th NFL season.
T-10. Justin King: 4.31, 2008
College: Justin King played defensive back for three years at Penn State and was selected in the fourth round of the 2008 NFL Draft by the St. Louis Rams.
NFL: King played for the Rams from 2009-11 then split 2012 with the Colts and the Steelers before falling out of the league.
T-10. Keith Marshall: 4.31, 2016
College: Keith Marshall played four seasons at Georgia, but the running back's best statistics came in his freshman year, when he racked up 850 yards from scrimmage and nine TDs.
NFL: Marshall spent his first NFL season on injured reserve due to an elbow injury.
T-10. Trae Waynes: 4.31, 2015
College: Trae Waynes played cornerback in his sophomore and junior seasons at Michigan State, and was selected by the Vikings with the 11th overall pick in the 2015 NFL Draft.
NFL: Waynes has appeared at cornerback in 15 games in each of the past two seasons for the Vikings and started in nine games for the team last year.