John Hefti/Associated Press
Matt Breida has been measured as the NFL's fastest ball-carrier the last two seasons and won't give up his crown without a challenge.
"Until someone beats my time, beats me out, I'm still the fastest guy," the Miami Dolphins running back said, per Joe Schad of the Palm Beach Post.
According to Next Gen Stats, Breida reached 22.3 miles per hour during his Week 5 83-yard touchdown run while with the San Francisco 49ers, the fastest mark in the NFL last season.