During the 2017 Monte-Carlo Masters 1000 SF between Rafael Nadal and David Goffin on Saturday, there was a big controversy. 10th seed Goffin was leading 3-2 in the first set and was on game point. Cedric Mourier, the chair umpire, ruled the ball IN when Nadal hit a shot. But, the ball was OUT, as shown by the hawk-eye system. Mourier showed the mark of another ball and Nadal won the point. The crowd booed the Chair Umpire and the Belgian did not shake Mourier’s hand after the match. After that point Goffin only won a single game.

This shows that Chair Umpires too commit mistakes. So, on this note we take a look at 10 mistakes Chair Umpires have made during a tennis match.

10. Mohamed Lahyani, 2016 Cincinnati Masters

It was a Quarter Final match between Grigor Dimitrov and Steve Johnson at the Cincinnati Masters in 2016. At the start of the 2nd Set Johnson served and the ball was called OUT by Lahyani. Johnson immediately challenged the call and the hawk eye showed that the ball was IN quite comfortably. After the challenge, Lahyani accepted his fault.

9. Richard Haigh, 2014 Cincinnati

In the 1St Round 2014 WTA Cincinnati match between Sara Errani and Yanina Wickmayer, In the third set the Chair Umpire called the ball OUT on Errani’s service. But the Hawk-Eye clearly showed the ball was way IN. Errani and the umpire had a long argument but Errani had to replay the point. Errani won the match 7-6 in the final set.