Kamaru Usman's streak of success in the UFC could ultimately bring his mixed martial arts career to an end sooner than later.
Speaking to Damon Martin of MMA Fighting, Usman said he's asking himself how much longer he will continue to fight if he keeps "lapping" the welterweight competition in the UFC:
"Being a realist and I'm honest with myself and I know that I can't do this forever, and I don't want to do this forever. Like I said, we're on a track right now. I'm just so far ahead of these guys that I'm coming back around and I'm lapping them now.