21.   Players mugged chair umpires.

22.   She cried out, stomped around, gestured menacingly toward the linesperson and the chair umpire.

23.   So, Agassi first asked chair umpire Norm Chryst if there was anything in the rule book that could stop Kucera from using what amounted to a hesitation tactic.

24.   Stich made some big-time enemies in the world of tennis umpires and linesmen Sunday, unleashing some bitter and inappropriate tirades against the competent chair umpire, David Littlefield.

25.   Tarango snapped a racket over his knee and bickered with the chair umpire throughout the match.

26.   Tarango began verbal volleying with chair umpire Norm Chryst and the linesmen in the first set and escalated his antics in the second.

27.   The ball, which landed close to the line, was called good by the linesman, but the chair umpire, Wayne McKewen, overruled.

28.   The chair umpire, Lynn Welch, explained that Raymond had obstructed her view of the ball and so she could not overrule.

29.   The chair umpire Rudi Berger overruled and called it out.

30.   The ever-inventive Jeff Tarango might use his wife, Benedicte, who once slapped a chair umpire in the face on his behalf.