Former UFC welterweight champion Georges St-Pierre is leaving no stone unturned in preparation for his UFC 217 title fight with Michael Bisping, and that includes bringing in former opponents to his training camp at Tristar Gym in Montreal.

After a more than four-year layoff from competition, St-Pierre (25-2 MMA, 19-2 UFC) returns to the octagon to challenge Bisping (30-7 MMA, 20-7 UFC) for the UFC middleweight title at UFC 217, which takes place Nov. 4 at Madison Square Garden in New York City and airs on pay-per-view following prelims on FS1 and UFC Fight Pass.

It’s a crucial fight for St-Pierre’s legacy. With a win he, can become just the fourth fighter in UFC history to hold belts in two weight classes. In order to help him get ready, “Rush” has enlisted the help of Jake Shields (32-9-1), a former Strikeforce champion and former opponent of the French-Canadian (via Instagram):

St-Pierre clashed with Shields inside the octagon at UFC 129 in April 2011. He won a unanimous decision for what, at the time, was his sixth consecutive title defense. He would defend it three more times after before vacating the gold in December 2013.

With Bisping primarily being a striker, it’s safe to assume St-Pierre is working with Shields, who last found in July under the PFL banner, to sharpen his wrestling and grappling for UFC 217.

For more on UFC 217, check out the UFC Rumors section of the site.

The Blue Corner is MMAjunkie‘s official blog and is edited by Mike Bohn.