Lesnar's eye. In the next round, Carwin was noticeably fatigued and Lesnar scored a takedown, attained full mount, then move into side-control and finish the fight with an arm-triangle choke. With the victory, Lesnar became the undisputed UFC Heavyweight Champion, earning his first Submission of the Night and giving Carwin his first loss. The win also tied a UFC record for most consecutive successful UFC Heavyweight Championship defenses. Title loss and first retirement Lesnar's next defense was against undefeated top contender Cain Velasquez on October 23 at the Honda Center in Anaheim, California at UFC 121. Dana White announced via SportsNation that the UFC would bring back UFC Primetime to hype the fight. In the first round, Lesnar scored a takedown and land some heavy knees but eventually succumbed to Velasquez's superior striking and was finished by technical knockout late in the round. Lesnar was advertised as a coach of The Ultimate Fighter Season 13, opposite Junior dos Santos, with the two expected to fight on June 11 at UFC 131, but he was struck with another bout of diverticulitis and had to withdraw from the fight on May 12. He was replaced by Shane Carwin, who ended up losing against dos Santos. Lesnar underwent surgery on May 27 to help battle his problems with diverticulitis. Dana White said that he had a 12-inch piece of his colon removed. In its May 2011 issue, ESPN magazine published a story listing the highest-paid athlete based on base salary and earnings for the most recent calendar year or most recent season in 30 sports. Lesnar topped the list for MMA at $5.3 million, which included his reported bout salaries and estimated pay-per-view bonuses. In the summer of 2011, Lesnar announced that he was returning to action, stating, "I feel like a new man. Healthy. Strong. I feel like I used to feel". His return match was scheduled to be at UFC 141 on December 30 in Las Vegas against former Strikeforce heavyweight champion Alistair Overeem. Lesnar attempted to takedown Overeem but was unable and ate heavy body shots to his surgically repaired stomach, eventually being finished with a liver kick and punches. Lesnar then retired from MMA, mentioning his struggles with diverticulitis and saying "tonight was the last time you'll see me in the octagon". Speculation about a return to MMA lasted until March 24, 2015, when Lesnar revealed in an interview