Sabalenka admits to line calling 'confusion' at French Open

Sabalenka began her eighth Roland Garros campaign with a commanding 6-1, 6-0 win over Russia's Kamilla Rakhimova. With three-time reigning champion Iga Swiatek struggling for form, the 27-year-old Sabalenka tops the list of title contenders as she targets a fourth Grand Slam. But the top seed confessed she is trying to get her head around the fact the French Open is the last of the four majors to still have line judges, with Wimbledon to adopt electronic line calling from this year. The technology is now used at all men's tour-level events...