LONDON—Rafa Nadal’s hopes of completing a rare calendar year Grand Slam ended on Thursday when the Spaniard pulled out of his highly-anticipated Wimbledon semifinal showdown against Australian Nick Kyrgios with an abdominal strain.
Nadal won the Australian and French Opens back-to-back this year for the first time in his career and was bidding to become the first man since Rod Laver in 1969 to complete the calendar-year slam.
