NFL's Derrius Guice Is Blazing Fast Again, After Serious ACL Injury

Beware NFC East ... the Baton Rouge blur known as Derrius Guice is BACK, 'cause the Redskins star just posted a video of him running hard AND FAST on his surgically repaired knee.

Guice -- one of the greatest backs in SEC history while at LSU -- tore his ACL in the 1st quarter of his 1st NFL preseason game after being drafted in the 2nd round by Washington, missing all of '18.

Kid looks like he's A-okay now though, just posting a video of him running full speed with both resistance and no resistance, absolutely killing both sprints.

Guice was supposed to be a huge part of Washington's offense this year, with many expecting him to push Saquon Barkley as the best running back in the rookie class.

Watch below ... and remember.