The only Grand Slam singles title Lendl never managed to win was Wimbledon. After reaching the semi-finals in 1983 and 1984, he reached the final twice, losing in straight sets to Becker in 1986 and Pat Cash in 1987. He reached the semi-finals in 1988 and 1989, but lost to Becker on both occasions. In 1990, Lendl put in intensive efforts to train and improve his grass court game. He switched to a larger headed racket and skipped the 1990 French Open in order to spend more time practising on grass. He won the Queen's Club Championships, with comfortable straight-set victories over McEnroe in the semi-final and Becker in the final, but was unable to reproduce this form at Wimbledon, and although he reached the semi-finals for the seventh time in eight years, he lost to eventual champion Stefan Edberg in straight sets.