Tokyo Olympics: Italian 100 metres champion Lamont Marcell Jacobs distances himself from growing doping suspicions

Italy's double Olympic champion Lamont Marcell Jacobs has insisted he is not bothered by suspicions of doping raised by the media, and that hard work is to thank for his record-breaking exploits in Tokyo.

Jacobs says he has split from his former nutritionist once he heard that Giacomo Spazzini was allegedly being investigated for a connection with performance-enhancing substances.

Jacobs became the first Italian to win 100 metres gold, setting a European record time of 9.80 seconds in the final, and was part of his country's triumphant 4x100 metres relay team.

The 26-year-old's performances led to media reports highlighting doping cases involving breakout stars in athletics, stories Giovanni Malago, the president of the Italian Olympic Committee, described as "unpleasant".

"These controversies do not affect me," Jacobs said.

"I know that I got here by making many sacrifices. I have been through disappointments and defeats, but I always got back up and rolled my sleeves up.

"If I have reached this point, it is only thanks to hard work. They can write what they want."

Reuters