Paul Rouse: Rise of the machines - cutting edge technology is transforming sport

YOU GOTTA BE KIDDIN' ME: John McEnroe questions the call of a line-judge while playing in an exhibition match in London. This week, the USTA announced that line judges will no longer be used at the US Open. Picture: Toby Melville/PA

This week brought another step in the rapid transformation of sport through technological change.

The United States Tennis Association (USTA) announced that line judges will no longer be used at the US Open.