The UFC hoped to organize an unofficial lightweight tournament involving the sport's biggest stars but has ultimately shelved the plans, MMA Fighting reported.
According to the report, the event would have pitted Georges St-Pierre against Nate Diaz in one semi-final and Conor McGregor against Khabib Nurmagomedov in another. The winners of each bout would then have fought toward the end of 2018.
However, the tournament failed to come together because the UFC couldn't schedule a St-Pierre vs. Diaz bout.
“I’m not ready to fight yet,” St-Pierre told MMA Fighting. “I need to wait until all the symptoms of my ulcer stop. It’s much better than it was but it’s not 100 percent yet. If I try to return for a training camp for a fight it will amplify and go back to what it was in the beginning. I need to get over this first for my own health and safety.”
Diaz hasn't fought since his loss against McGregor at UFC 202 and St-Pierre has been absent from the octagon since his win over Michael Bisping at UFC 217.
Meanwhile, McGregor is dealing with some legal trouble after being charged with assault for charging and attacking a bus hauling UFC fighters.