When I used to play the umpires used to warn any service faults for the first time... (were university matches though & they couldnt have controlled the crowd if they didnt )
People in South Asia can watch matches going on court 1 on the Neo Sports channel. As usual it is Gillian Clark commentary following it.
Certainly like her (and the way her pitch changes with emotion). But I fail to see why she is the only commentator? Other sports will have different commentator for different channels/regions. For badminton if it is English commentary it is only her.