Sabalenka's Stuttgart Win Marred by Line Call Dispute

World No. 1 Aryna Sabalenka advanced to the Stuttgart Open semi-finals after defeating Elise Mertens 6-4, 6-1 in a match marked by controversy over a disputed line call. During the first set, Sabalenka borrowed a phone to photograph a questionable ball mark after chair umpire Miriam Bley refused to check it, resulting in a warning for unsportsmanlike conduct. The incident highlighted player frustration over the absence of Electronic Line Calling (ELC) technology at the Stuttgart tournament and similar WTA clay events. After the match, Sabalenka commented on a tense post-match handshake with Bley, indicating lingering tension from the dispute. Despite the controversy, Sabalenka stated she respects officials but stressed the need to prevent officiating errors. The episode has renewed debate about implementing ELC on clay courts in women's tennis.