Ivo Karlovic has officially announced his retirement from tennis after having not played a tournament match in 2.5 years.  The 44-year-old Karlovic — he will turn 45 next week — played his last ATP match in a second-round qualifying loss at Indian Wells, California in October 2021. His last Grand Slam tournament match was a first-round singles loss at the US Open about six weeks earlier. Rio Open 2024: Carlos Alcaraz Retires Hurt From His Match Against Thiago Monteiro Due to an Ankle Injury.

Boris Becker Tweet

Six-time Grand Slam singles champion Boris Becker was among those to congratulate Karlovi c on X, calling his serve "the best in tennis."

He finished his 25-year career with eight singles titles and a record of 371 wins, 346 losses and USD 10.1 million in prize money. His highest singles ranking was at No. 14 in August 2008. His best Grand Slam singles performance was at Wimbledon in 2009, when he advanced to the quarterfinals. He also won the Davis Cup in 2005 with Croatia when it beat Slovakia in the final for the country's first title. Iga Swiatek Sweeps Past Sloane Stephens in Dubai Tennis Championships 2024 Opener.

He finished his career with 13,728 aces, second behind John Isner with 14,470. Karlovic has the most aces in a best-of-three-set match with 45 at Halle in 2015 and two weeks later at Wimbledon became the only player to hit at least 40 aces in three consecutive matches.

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