Kaia Kanepi of Estonia in Washington, DC

Kaia Kanepi (born 10 June 1985) is an Estonian professional tennis player. She achieved her career-high ranking of world No. 15 on 20 August 2012 and has won four singles titles on the WTA Tour.

Described as a ‘resident Grand Slam upset specialist’ by The Guardian – with 19 wins over seeded players in the first week of Grand Slams; only three active players (Victoria Azarenka, Venus Williams and Serena Williams) have more. She has also reached seven Grand Slam quarterfinals in all four championships (French Open in 2008 and 2012, Wimbledon in 2010 and 2013, the US Open in 2010 and 2017, and Australian Open 2022), becoming the first Estonian to achieve this and was the first Estonian to be ranked inside the world’s top 15.

Kanepi reached the final at the Citi Open 2022 but lost to Liudmila Samsonova, 4-6, 6-3, 6-3.

Mohamed Lahyani Officiating at the 2022 Citi Open

Mohamed Lahyani (born 27 June 1966 in Morocco) is a Swedish tennis umpire. He is a Gold Badge Chair Umpire certified by the Association of Tennis Professionals. He is noted for presiding over the longest match in professional tennis history at the 2010 Wimbledon Championships, the Isner–Mahut match at the 2010 Wimbledon Championships that lasted 11 hours 5 minutes (Isner won).

Lahyani later said he was so gripped by “an amazing match” that he couldn’t even think of “eating or needing a bathroom. After the match, he was presented with a crystal bowl, a Wimbledon tie and silver cufflinks. 

At the 2018 US Open, Lahyani made headlines after his controversial behavior during the match between Nick Kyrgios and Pierre-Hugues Herbert, when he climbed down from his chair and encouraged Kyrgios to put in extra effort. At the time Kyrgios was losing by a set and a break, but after Lahyani’s comments, recovered and won the match. After criticism from current and former players, Lahyani was suspended for the next two tournaments.