American Gatlin, who has served two doping bans, was booed before and after Saturday’s World Championship final at London Stadium, and when he was presented with his gold medal.
“He served his ban and he worked his heart out doing what he could,” said Willie Gatlin in an interview with BBC
“He worked to come back, and he worked his way back to championship form.”
Gatlin, 35, clocked 9.92 seconds as he beat second-placed compatriot Christian Coleman and legendary Usain Bolt, who was third.
Bolt, 30, was unable to secure a 20th global gold in his final individual 100m race before retiring.