After he averaged 3.4 yards per carry with the Jaguars last season, Maurice Jones-Drew thought about retiring.

Jones-Drew says that he watched tape of himself on the field and felt like he “just didn’t have it” after a serious foot injury in 2012 helped contribute to 2013′s dismal results. Jones-Drew was convinced that he could still play by a serious workout regimen that made him throw up five days in a row — “I wanted to see if I still had that burning desire” — and the desire to show his critics that there’s still something left in the tank.

“It doesn’t bother me that people have written me off, but it’s just how they’ve done it,” Jones-Drew said, via the Los Angeles Times. “I understand if I had played bad the year before, then played the way I did [in 2013]. Then, I could understand people saying, ‘Oh, he’s done.’ But I was leading the league in rushing before I broke my foot. It was tough hearing people say, ‘Aw, you don’t have it anymore.’”