 Complete the following phrase:  Tsitsipas played in his first ATP main draw at the 2017 Rotterdam Open, where he lost his debut match to the eventual champion Jo-Wilfried Tsonga. He also made his Grand Slam debut later that year as a qualifier at the French Open, but lost to Ivo Karlović in his first match. After losing in qualifying at the US Open, Tsitsipas won his first Challenger title in Genova. Overall, he qualified for a tour-best eight events during the season, including Wimbledon and the 