Originally Posted by JLyon
The officials are not there to call lines unless they are in a chair. They are roving to make sure matches are progressing in a timely manner and to come onto court as needed.
As for your comment, I would assume these officials could be the referee and deputy referee who have more important things to do than walking around calling lines,such as assisting with rules questions, draws questions, etc....
oh okay but the other day im in a 10 point tiebreak the other guy clearly calls a ball out when it was in and the usta offical is like that was out