FanHouse

As Michael David Smith has already spelled out, Darren McFadden helped arrest any worries of a draft day decline with a blazing fast 4.33 official time in the 40-yard dash. But McFadden wasn't the only running back to help his draft stock.

East Carolina's Chris Johnson ran a 4.24 40-yard dash, which will likely clock in as the fastest time at this year's combine, although the cornerbacks have yet to run. It's also ranks as one of the fastest times ever recorded at the combine by a running back.

So he's fast, but can he play? The answer is quite clearly yes at least at the college level. Johnson rushed for 1,468 yards with 17 touchdowns and a 6.0 yard per carry average. He also had 37 catches for 528 yards and averaged 28 yards on 36 kick returns. His 2,960 all-purpose yards led the nation by nearly 300 yards.

The concern about Johnson is that his small size (5-foot-11, 195 pounds) and skinny legs may keep him from being an every-down back. But with world-class speed, good hands and kick return ability, his combine workout should make him plenty of money, as he now looks to be at worst a very talented third-down back/returner. And as the Chargers showed with Darren Sproles (pictured at right) last year, an undersized tailback can still be pretty valuable if you pick his spots.