Georges St. Pierre (Pictures) should know by Wednesday evening if his showdown with UFC welterweight champion Matt Hughes (Pictures) is still on, the Canadian's manager told Sherdog.com Saturday.

St. Pierre pulled his groin on August 3 and has been limited in training for September 23's title fight, a bout marking his second shot at Hughes' belt.

On August 10 St. Pierre's camp notified the UFC about the injury, which a physiotherapist in Montreal had initially told the powerful 170-pounder he'd need four weeks to fully recover from.

St. Pierre has since flown out to Las Vegas, where he helped corner Jonathan Goulet (Pictures) during Thursday's UFC Fight Night, to work with a specialist that has helped Wayne Gretzky and Tiger Woods.

Patry indicated St. Pierre is 95 percent and has continued to work on his cardio and boxing during the down period. The injury has made grappling difficult, which is problematic considering it is Hughes' strength.

The decision on St. Pierre's participation will come after "Rush" pushes himself hard Wednesday evening. Patry said he believes the fight will happen and St. Pierre will return to Montreal on Sept. 25 with the belt around his waist.

In the event that St. Pierre cannot fight, a member of the champion's camp told Sherdog.com, the UFC has started to work on back-up plans, including a rematch between Hughes and B.J. Penn (Pictures).