TYSON Gay vowed to return fitter and faster next season after defying a groin injury to win the 100 metres at the Aviva British Grand Prix in Gateshead.
Gay clocked 10.15 seconds despite a headwind of two metres per second to win easily ahead of former world champion Kim Collins and Marc Burns, and then confirmed he will undergo surgery shortly.
"I'm looking forward to Brussels on Friday and maybe one more race and then I'll have surgery," said Gay, who clocked the third fastest time in history (9.71s) behind Usain Bolt in Berlin.
"I feel grateful for my second place in Berlin. I ran a great time, it just was not fast enough. I was running on one leg so once I have surgery I will be running faster."
Gay decided against competing in the 200 metres, which left the way open for Shawn Crawford to triumph.
It was not easy for the 31-year-old, who beat fellow American Wallace Spearmon by one hundredth of a second in a time of 20.80 seconds.
"It was very close – too close," said Crawford. "My body feels good, but my mind now wants to go back to the US and figure out a way to beat Bolt."
World champions on show also enjoyed a successful day, with Allyson Felix shrugging off a dreadful start to cruise to victory in the 200m and LaShawn Merritt winning the 400m in 45.10s ahead of Britain's Martyn Rooney.
"It was good to make a race of it for once but I think Merritt was just having fun though," Rooney said. "I saw him with 100m to go and I thought I could have a go but he just had another gear. It was good to give the world champion a race though."
Jamaica's Brigitte Foster-Hylton won the 100m hurdles in a good time of 12.88s despite a headwind of 1.9m per second and said: "Being a world champion is so different.
"I've got more pressure on me now so I have to deal with these expectations. I'm learning there's such a vast difference between winning and coming second."
Meanwhile, Bolt will run the 200 metres at the IAAF World Athletics final next month in Greece. The Jamaican sprinter shattered world records in the 100m and 200m at the World Championships earlier this month, clocking 9.58secs and 19.19secs to improve the times he set in winning gold at last year's Beijing Olympics.
Bolt contested the 200m at three meetings this season and was not automatically qualified for the race, which takes place on 13 September in Thessaloniki. "But as per the qualifying regulations the eighth place is at the discretion of the IAAF," the international federation said in a statement.