US world 100 metres silver medallist Tyson Gay [ Images ] had an arthroscopic procedure on his injured right hip and will not run again this year, his manager said on Thursday.

Gay, the world's second fastest man behind Usain Bolt [ Images ], had the surgery on Tuesday in Vail, Colorado, Mark Wetmore said in a statement.

"The doctor was pleased with the outcome and believes Tyson will resume his normal base training in the fall as he prepares for 2012," said Wetmore.

The frequently-injured Gay had hoped to race Jamaica's Bolt in August's world championships but was forced to withdraw from the US world trials 100 metres semi-finals last month because of the hip injury.

He will now focus on recovering and preparing for the 2012 London [ Images ] Olympics [ Images ] and an anticipated showdown with Bolt.

"The procedure, which addressed an impingement in his hip, went just as expected - with no surprises or complications," Dr. Marc Philippon said in a statement. "Tyson is already doing range-of-motion, active rehabilitation and I expect him to resume normal training after six-to-nine weeks."

Gay, who turns 29 on August 9, was not available for comment.