The Detroit Lions have signed American rugby star Carlin Isles to a futures contract. Isles is known as the "fastest man in American rugby" and reportedly ran the 40-yard dash in 4.22 seconds at his workout with the Lions, per Chris McCosky of The Detroit News.

Can Isles' rugby skills translate to the NFL? What position will he play?

Watch as Adam Lefkoe and DetroitLions.com's Tim Twentyman discuss Isles' chances of making the Lions next season in the video above. Let us know if you think he can make the team in the comments below!