(WSCR) Chicago Bears legendary running back Gale Sayers is no stranger to knee injuries.

Nine games into the 1968 NFL season, Sayers tore every ligament in his right knee. After a grueling rehab process, Sayer returned in 1969 to lead the NFL in rushing with 1,032 yards.

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“It’s going to be tough for him,” Sayers told The Mully and Hanley Show. “This is his first knee injury. He needs to make sure that he does what the doctors tell him to do. I know with my knee injury, I didn’t have the type of medical technology we have today. If I could’ve had what we had now, I probably could’ve been back out in three months. I didn’t have that. My knee was torn up. I tore every ligament in my knee. It was a very, very bad injury. I had to do what the doctors told me to do, and I did that. The next year, I came back and led the league in rushing.”

LISTEN: Gale Sayers on The Mully and Hanley Show

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Sayers even said he thinks Rose can be the same player, if not better, when he returns for the Bulls next season.

“Personally, I think he can,” Sayers said. “The technology is so much greater, so much better than when I got my knee injury. I really feel that he can (be the same player.) … I really feel that he will be ready to come back and play basketball. I don’t know how long it’s going to take him, but hopefully he’ll be ready next season to try and help the Chicago Bulls win a championship.”

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Sayers joined 670 The Score to promote the 2012 Gale Sayers Celebrity Golf Classic, which is this Saturday, May 12. The event will raise funds for The Gale Sayers Center. Registration begins at 11 am, with the event starting at 1 pm. For more information, visit GaleSayersCenter.org.