"There's a soreness there that he is going to have to deal with, " said the American's manager Mark Wetmore.

BBC: Powell insists Bolt is beatable

"The doctor (William Meyers) was really, really happy with the surgery and Tyson should start walking on Saturday, " Gay's manager Mark Wetmore said.

BBC: Gay set to be fit for new season

"The idea is to have both run seven Diamond League meets, possibly even eight with a couple of a match-ups between the two throughout the year, " Wetmore addded.

BBC: Gay set to be fit for new season