NEW YORK -- Play in 2021 champion Daniil Medvedev's US Open match in Arthur Ashe Stadium -- and all contests on other courts -- was delayed for a few minutes Monday because the tournament's electronic line-calling system stopped working.
Medvedev took the first two sets against Nuno Borges and they were in the midst of the third set of their fourth-round match when the chair umpire told them they needed to stop.
The same thing happened as Beatriz Haddad Maia was serving for the first set of her match against 2018 Australian Open champion Caroline Wozniacki.
There were 15 matches in progress at the time. Eventually, all resumed.
