In the 1980s, he was named chief referee, who has the power to approve or overrule calls made by other officials.
No, Carroll didn't make the actual pass call, that was offensive coordinator Darrell Bevell, but Carroll could have overruled the call, as he was wearing headsets, which he tossed to the ground after their interception.
Errani then sent a winner to the other side of the court on her next shot and believed she had taken the lead, but Ivanovic called for the chair umpire, who checked the previous mark and overruled the call.
After conferring, they overruled the call.
But on the first point of the 10th game, umpire Jorge Dias of Portugal overruled a call on a Roddick shot.
But when chair umpire Louise Engzell correctly overruled a call on a potentially match-ending shot, momentum seemed to shift toward the underdog.
Sampras saved set point, serving at 4-5 when the chair umpire overruled a call and allowed his ace into the corner.
But as the howls of protest around Fenway Park grew as TV replays showed Kozma failing to catch the ball at second base, the umpires conferred, and then unexpectedly overruled the call.
He did not think he was getting any kind of home-court advantage when the chair umpire, Jorge Dias of Portugal, overruled a call with Roddick serving, trailing by 4-5 in the fifth set against Hewitt.
Officials reviewed the play but did not overrule the call.
