Georges St-Pierre has not been seen in UFC since his return to the promotion last year in November and now there are serious questions about his future in the sport of MMA.

GSP returned to UFC last November at UFC 217 after almost a four-year absence from the sport of MMA to defeat Michael Bisping and become the UFC Middleweight Champion, becoming the fourth fighter in the history of the UFC to be a multi-division champion.

However, just a month later, the Canadian vacated the Middleweight title as he was suffering from colitis and want to hold up the division. Now though, many people are wondering if he will return to the sport in the future once more.

St-Pierre’s coach, John Danaher, appeared on Joe Rogan’s MMA Show podcast on Monday to discuss his student’s return to MMA and what the future may hold for him. He said no one can be sure if GSP will return, suggesting that a second comeback might not be in the cards.

Danaher said, via MMA Fighting: “The truth is that no one knows because it comes down to medical problems. Georges has a problem in his stomach. I’m not gonna claim to be a medical expert but it’s one of the most frustrating things Georges has had to deal with. . .

"The truth is, no one really knows at this point. Wherever there’s doubt my instinct is to think, ‘Do you really want to come back Georges? You’ve done all this and it was [an] amazing [way to end his career.]’”

If St-Pierre does return, he's unlikely to compete at middleweight again, as he had a difficult time keeping his weight up for the training camp. If he does come back, it would likely be at welterweight, possibly for a fight against current champion Tyron Woodley, a fight which interests Danaher.

The coach said: “I think Tyron Woodley is a great champion. I know he gets a lot of flak but that kid is talented. I think he’s very, very good. I think people say that [GSP doesn’t want to fight Woodley] for reasons so they can motivate someone to fight. There’s a political aspect to it. I think both athletes have a deep respect for each other.

“Tyron Woodley’s a very, very difficult opponent to beat. People criticize his style but people don’t understand the difference between regular fighting and championship fighting. Championship fighting is about winning and losing and you’ve got to do what you’ve got to do to win. That’s the first consideration.

It’s nice to impress the crowd, it’s nice to do this or that but ultimately it’s about what you are going to do to win, what you are going to do to beat the second-best guy in the world. That’s a difficult, difficult thing.

“My only reservation is that essentially it’s the same fight that Georges did for a decade. It’s Georges against another very, very tough welterweight, which he did for 10 years of his life.”

Woodley vs GSP would be a fight that many UFC fans would love to see. We have already seen Woodley campaign hard for the fight to happen, it's just a case of convincing the Canadian to return to the Octagon once more in 2018.