A previously postponed welterweight rematch between Jon Fitch and Thiago Alves will now take place at UFC 115 on June 12 at the GM Place in Vancouver, British Columbia, Canada, according to a post made Sunday on UFC President Dana White’s Twitter account.Alves couldn’t get medically cleared to face Fitch at UFC 111 on March 27 due to an irregularity in his pre-fight neurological exam. The 26-year-old Brazilian underwent a successful surgical procedure last week to correct the condition.Fitch, 32, fought last-minute replacement Ben Saunders , a teammate of Alves, at UFC 111 and won the bout by unanimous decision.American Kickboxing Academy’s Fitch earned a second-round technical knockout over Alves at UFC Fight Night 5 in June 2006.Fitch and Alves sit at the No. 2 and 3 spots on Sherdog.com’s official rankings.