Former UFC light heavyweight champion Mauricio “Shogun” Rua’s decision to turn down a match for the title seemed odd. Rua’s manager, Julio Heller, explained to Brazilian news outlet Tatame why his fighter said no.

We talked and we got to a conclusion we should accept the rematch, but only if ‘Shogun’ had a couple of months to train and it would mean a fight later in October or November. I said to (UFC co-owner) Lorenzo (Fertitta) but he said there was no time because Jon Jones’ fight is on September 22. Unfortunately, he couldn’t give us this time but he understood.

Heller said that the “ideal is a three-month camp, but he said yes to a two-month camp fight. He wants to fight Jon Jones and it sucks it won’t happen now.”

Instead, Rua will face Alexander Gustafsson in December at UFC on Fox 5. Heller said Rua will begin training for that fight next week.