Antonio "Bigfoot" Silva will undergo one more surgery in 2014.

The UFC heavyweight, who had surgery earlier this year for a shoulder injury, will need to go under the knife to remove a pituitary gland tumor that has reemerged. Silva, who had the same surgery in the past, will have to battle the disease again.

"I will have to do the surgery again after my next fight, and then I will be cleared to train again in four or six weeks," Silva said on Monday’s edition of The MMA Hour. "I will have to do the surgery again since I can’t take testosterone (replacement therapy)."

Silva used TRT for the first time in his last fight, but tested positive for elevated levels of testosterone. The heavyweight, who suffers from acromegaly, won’t be able to continue the treatment now that TRT was banned by the Nevada Athletic Commission.

"Some use it for ego, but (the TRT ban) is a problem for those who really need it," he said. "That was the first time I used it. I always fought without TRT and I will continue."

"Bigfoot" is suspended until Sept. 7 for failing the drug test, and he targets the UFC Fight Night card in Brasilia, Brazil, on Sept. 13, for his return to the Octagon.