Line umpires at a Grand Slam tournament, such as the U.S. Open, are all but invisible most of the time; that is, until they get the call wrong.
WSJ.com: Sports, Wall Street Journal: Sports
Wed, 08/27/2014 - 8:23pm
Line umpires at a Grand Slam tournament, such as the U.S. Open, are all but invisible most of the time; that is, until they get the call wrong.