Boxing great Floyd Mayweather said his time in the ring is finished and that he is focused on other projects including his fast-growing chain of boxing fitness gyms and his high-profile promotion company.

The 42-year-old American, who has retired in the past only to be drawn back for another colossal payday, said he is content to hang up his gloves with an unblemished 50- and 0 record.

Mayweather said he has had calls to get back into the ring, but stated that his health is his wealth, adding that it is time to say good bye to a very very brutal sport, which in the last few years have seen the death of a few fighters.

American Patrick day died in October as a result of a traumatic brain injury he suffered when he was knocked out and two professional fighters perished within a week’s time in July from damage sustained during their bouts.

Mayweather, who won the first of his 12 world titles in 1998, first announced his retirement in 2007 but quickly returned to the ring.

He retired again in 2015 only to come back to defeat mixed martial artist Connor McGregor in 2017. After that battle he said his professional career was truly over.