Britain's Joe Salisbury and American team-mate Rajeev Ram began the defence of their US Open men's doubles title with a straight-sets win.
Salisbury became the first Briton to win two doubles titles at a Grand Slam in the Open Era at last year's US Open.
But the top-ranked men's doubles player will not be defending his mixed doubles title alongside Desirae Krawczyk.
Salisbury and Ram, who also won the 2020 Australian Open, warmed up for the tournament with victory in Cincinnati - their third Masters 1000 title together.
The Briton, a four-time Slam doubles champion, was out for a month with a back issue following the pair's run to the Wimbledon semi-finals in July.