Yohan Blake has warned his rivals that he is going to get better after he equalled the third-fastest time in the 100m at Thursday's Diamond League meeting in Switzerland.
The Jamaican, who revealed that he had been suffering with illness, posted a time of 9.69s to win the race in Lausanne.
"I have been sick all week, thank God I recovered," Blake told BBC Sport.
"I have more races and I'm going to get better and better."
Tyson Gay and fellow countryman Usain Bolt are the only two other men who have run the same time.