Cannon Kingsley follows through on his serve against Thiago Augustin...

Cannon Kingsley follows through on his serve against Thiago Augustin Tirante during their boys juniors match at the 2019 U.S. Open on Tuesday. Credit: Joseph D. Sullivan

Rain postponed Northport’s Cannon Kingsley’s quarterfinal match, and all play in the U.S. Open boys’ junior tournament, to Saturday.

Kingsley was scheduled to play Swiss Dominic Stephan Stricker — both players are unseeded — on Friday.

Open officials now must cram the final three rounds of junior competition into the last two days.

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