I agree with you 99% Mrs_Guga!
But you have to let these tennis fans clap and cheer from time to time. But hopefully they'll use good judgement and clap at the appropriate time.
Somehow sports fans over the years have come to think of themselves as part of the game. Or even worse, they think they're part of the team they are cheering for!
And that's where alot of terrible fan behaviour begins!
And unfortunately, bad fan behaviour is everywhere!