It's difficult to believe what Khamzat Chimaev pulled off at UFC 308.
The undefeated middleweight returned to action in the card's co-main event, taking on former champ Robert Whittaker, who is one of the best fighters in the division's history.
The pressure was on for Chimaev in his first fight since scoring a narrow decision win over a blown-up welterweight in Kamaru Usman last fall—a contest that raised serious questions about his gas tank and ability to reach the top of the division.
Many fans expected him to be overwhelmed by Whittaker, this one included.