The procedure began as a simply exploratory but the doctor eventually removed the injured meniscus. The injury was confirmed by Lytle's manager Ken Pavia.
Pavis also mentioned that Lytle is currently weighing his options, which include retirement.
"He's considering his options, and retirement is one of them," said Pavia.
If this is the end for Lytle, it would be bring to close on one of the most exciting fighting careers in mixed martial arts history. The Indiana slugger is known throughout the mixed martial arts community as someone who constantly comes to fight, win, lose or draw.
Lytle was on four fight winning streak before the decision loss to Ebersole.
"He'll never use that stuff as an excuse, and the reason he tried to keep this quiet is because he wants to make sure that Ebersole gets all the credit in the world for his win, and for livening up the fight," Pavia said.
Check out the full report at MMAFighting.