Tennis star Iga Swiatek has been booed by spectators after smashing a ball at a ball boy in an ugly act of sportsmanship.

Tennis star Iga Swiatek has been slammed for her behaviour after she was knocked out of Indian Wells on Friday following her defeat at the hands of Mirra Andreeva. The five-time major winner lashed out at a ball kid as she failed to defend her crown.

Former world No.1 Iga Swiatek was booed off the court after nearly hitting a ball kid in a moment of anger during her loss to teenager Mirra Andreeva at Indian Wells. Andreeva, 17, became the youngest finalist since 2001 with the stunning 7-6 (7-) 1-6 6-3 win over the defending champion, much to the delight of the crowd.

Iga Swiatek went off the rails on Friday night during her loss to Mirra Andreeva in the semifinals of the BNP Paribas Open at Indian Wells, Calif. Swiatek lost 7-6 (1), 1-6, 6-3 to the 17-year-old Andreeva,

Tennis fans are upset after Iga Swiatek displayed poor sportsmanship during her match against Mirra Andreeva at the BNP Paribas Open at Indian Wells.