The umpires should be consistent, though. If that player did exactly what Djokovic did in the USO 2020, she should be sanctioned the same way. If the umpire missed that, they didn't have to be swayed. I think they were swayed because they realized the inconsistency. Plus, since when is umpiring left only to the officials? Players endlessly argue it. What about recent video of Rafa giving a first serve to a player when the umpire denied crowd obstruction? (I think it's on the Rafa Fans Thread.) They player overruled the umpire. Why is it "bad form" for players to argue the rules?