<P> On February 28, 2011, Lendl returned to the court again in an exhibition match against McEnroe at Madison Square Garden in New York City . It was planned to be a one - set, first - to - eight event . However, McEnroe, leading 6--3, injured his ankle and had to retire from the match . </P> <P> In May 2012, Lendl played in Prague for the first time since the 1970s, in the 2012 Sparta Prague Open tournament . He defeated fellow Czech Jiří Novák in the exhibition match . </P> <P> On December 31, 2011, Lendl was appointed to coach Andy Murray . Lendl has been credited with improving Murray's maturity and consistency, guiding him to his first two Grand Slam victories in the 2012 US Open, and 2013 Wimbledon Championships . On winning the US Open in 2012, Murray became the second player in the Open Era, after Lendl, to have lost their first four Grand Slam finals, and won the fifth . On March 19, 2014, it was announced that Lendl and Murray would be ending their two - year coaching partnership . </P> <P> On June 12, 2016, Lendl rejoined Andy Murray's coaching team . By the end of 2016, Murray had become world no . 1, having won his second Wimbledon title, third major championship overall, second Olympic Gold Medal in singles, and his first ATP World Tour Finals title, defeating Novak Djokovic . </P>

Czech american tennis star who lost wimbledon finals in 1986 and 1987