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Live updates from Monday’s fourth-round action
Djokovic exits to boos after retiring against Wawrinka
Get in touch: email Nick or tweet @NickAmes82

3.27pm BST
Play in the Vekic-Gorges match starts in around about 40 minutes. You can send in your emails and tweets to the addresses above if you’d like to provide your observations, on that tie or any other aspect of the US Open so far!
3.09pm BST
Arthur Ashe Stadium (12pm local/5pm BST)Naomi Osaka (Jpn, 1) v Belinda Bencic (Sui, 13)Alexander Zverev (Ger, 6) v D Schwartzman (Arg, 20)Louis Armstrong Stadium (11am local/4pm BST)Donna Vekic (Cro, 23) v Julia Görges (Ger, 26)Andrey Rublev (Rus) v Matteo Berrettini (It, 24)Kristie Ahn (US) v Elise Mertens (Bel, 25)Gaël Monfils (Fr, 13) v Pablo Andújar (Sp) Continue reading...