Serena Williams dubbed ‘one of the greatest of all time’ after final match

Serena Williams dubbed ‘one of the greatest of all time’ after US Open defeat (John Minchillo/AP)

Michelle Obama praised Serena Williams as “one of the greatest athletes of all time” as the tennis superstar played what was likely to be her final professional match.

The former first lady led tributes to her friend and her “amazing career,” saying she would go on to “transform lives” with her talents.