John McEnroe — he of “You cannot be serious!” call-arguing fame — is quite all right with Wimbledon's latest of many steps into the modern era, choosing technology over the human touch to decide whether a ball lands in or out.
There were no line judges at the All England Club's matches for Monday's start of the oldest Grand Slam tournament, with rulings instead being made by an electronic system that uses recorded voices to announce when a shot lands astray.
