5 things Brock Lesnar wants you to forget about his career

2. Losing his UFC debut

He would go on to avenge the loss

Lesnar might be billed as the only man to win the WWE and UFC world titles, but his time in the Octagon did not start on a bright note.

Lesnar made his debut at UFC 81 against former UFC Champion Frank Mir. Lesnar secured multiple takedowns on Mir, but the wily veteran countered immediately following a Lesnar takedown and locked in a kneebar. Brock had no option but to tap out.

Lesnar actually got beat in 1:30 of the first round.