British doubles player Joe Salisbury has been forced to withdraw from the Paris Masters after "sustained close contact" with someone who has tested positive for Covid-19.
He and American partner Rajeev Ram - the world's leading men's doubles team - have been replaced in the draw.
They won the Australian Open title together in January and have qualified for December's behind-closed-doors ATP Finals at the O2 Arena in London.
The tournament in Paris is the final Masters event - the top tier of men's events below the Grand Slams - of the fragmented ATP season.
Salisbury's fellow Britons Jamie Murray and Neal Skupski are playing in the French capital as they look to clinch their spot at the ATP Finals.