400
In doubles, Player A serves an ace to Player B.
Player B claims that his partner wasn't back into position (after retrieving a ball) when Player A served and so they would like a let. Are they entitled to a let?
This is the correct answer: (Yes/No)
What is No?
(The server shall not serve until the receiver is ready--the rule doesn't say anything about the receiver's partner because it's the receiver's responsibility to stop play if his partner isn't ready, not the server's. Once the receiver is ready, he cannot become 'unready' unless there's 'outside interference.'