Don't overreact to Isaac Guerendo's freakish speed

Louisville RB Isaac Guerendo rocked a 4.33-second 40 time at the Scouting Combine on Saturday. That rated 99th-percentile among historical Combine RBs. Doing so at 221 pounds gave him a 100th-percentile speed score (125.7) for the position. Be careful about getting overly excited for Guerendo, who failed to eclipse 64 carries across four seasons at Wisconsin. He rushed 132 times and caught 22 passes in a fifth year at Louisville, averaging 6.1 yards per rush and 10.6 per reception. Guerendo still trailed teammate Jawhar Jordan in carries, yards per carry, yards per catch, and TDs. We'll see where he lands in the NFL draft, but Guerendo looks more like an intriguing third-round pick for rookie drafts than a guy who should vault into the first two rounds.