Sinner served a shorter suspension between February 9 and May 4 this year. The Italian stated that he accidentally, in connection with a massage, ingested the banned steroid klostebol.
I think that's very strange, says Borg about Sinner resuming cooperation with the physical trainer.
The 69-year-old, who has a new book out, tells that some of his competitors during his active time were doped.
In my time, I know that some players doped. I don't want to go out and say the names, but I know that there was doping during my time. I didn't do that. I'm like anti. If you dope, I think you should be suspended for life, says Björn Borg.
He also claims that doping and cheating occur at the junior level. Something he gained knowledge of when he traveled with his son Leo Borg.
We have followed Leo around the world, I know that it occurs there. There are double passports, they cheat with their age, says Björn Borg.
He is releasing his autobiography "Hjärtslag" on Thursday, written together with his wife Patricia Borg.
