Scotland's Andy Murray returns to Germany's Maximilian Marterer during their first round tennis match at the ATP Challenger tournament in Biella, Piedmont, on Feb 9, 2021. (MIGUEL MEDINA / AFP)

PARIS - Three-time Grand Slam winner Andy Murray lost in straight sets in the opening round against Belarusian Egor Gerasimov at the ATP event in Montpellier, France.

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The former world number onewas playing his first ATP Tour match since last October. He missed the Australian Open after testing positive for COVID-19.

The Brit is currently 121st in the world rankings.