Roland Garros runner-up Stefanos Tsitsipas is leaving no stone unturned in his preparations for the upcoming 2022 season. The Greek, who underwent elbow surgery last month, has slowly increased the intensity of his training sessions in Dubai.In the latest practice video released by a fan on Twitter on December 21, the World No. 4 can be seen hitting his groundstrokes freely, without holding himself back.You can watch the video here:GPanoutsos@GPanoutsosGood afternoon world from beautiful warm and ☀️ Dubai 🇦🇪 #tsitsipas2:34 AM · Dec 21, 2021449Good afternoon world from beautiful warm and ☀️ Dubai 🇦🇪 #tsitsipas https://t.co/TvfVA26WIpThe former ATP Finals champion has been careful not to overburden his elbow with heavy training sessions right away. In an earlier video posted on December 15, the Greek was seen indulging in a fun doubles practice session.Tsitsidaily@tsitsidailyStef practicing in Dubai!😍💙3:03 AM · Dec 15, 202113013Stef practicing in Dubai!😍💙 https://t.co/PQFTJpFJbRTsitsipas was next seen having a light hit without putting pressure on his recuperating elbow.Stefanos Tsitsipas Family 🇬🇷@TsitsifamStef hitting in Dubai via alkistis_panoutsou_ on IG4:43 AM · Dec 17, 2021487Stef hitting in Dubai via alkistis_panoutsou_ on IG https://t.co/Vcj7MCZXv3Stefanos Tsitsipas and his brother Petros, who is also a professional player, could then be seen working on their speed, endurance and leg strength. The two kept putting the hard yards in under the watchful eyes of Stefanos' fitness coach, Frederic Lefebvre, who has been a part of his team since 2017.Stefanos Tsitsipas Family 🇬🇷@TsitsifamStefanos and Petros putting in the preseason work with Frédéric!#PameStef 🇬🇷8:45 AM · Dec 20, 2021573Stefanos and Petros putting in the preseason work with Frédéric!#PameStef 🇬🇷 https://t.co/n8Eui0uQeCGoing by Tsitsipas' most recent video, the Greek is nearing full fitness ahead of the Australian Open, where he is a two-time semifinalist.Stefanos Tsitsipas attends Abu Dhabi GP during his Middle East sojournStefanos Tsitsipas had a remarkable first half of 2021, reaching the French Open final and winning his maiden ATP Masters 1000 title at Monte Carlo. However, the season didn't end well for him.A persistent elbow injury compelled him to withdraw from the ATP Finals in Turin following his first match. The Greek ultimately went under the knife on November 25 and subsequently announced his plans to do his pre-season in Dubai before heading Down Under.After arriving in the Middle East, Tsitsipas also took some time out to attend the riveting Abu Dhabi Grand Prix with his younger brother Pavlos. A self-confessed Max Verstappen fan, the Greek's joy knew no bounds when the Red Bull driver was crowned world champion.Stefanos Tsitsipas, who recently became a part of the Red Bull family, was in their box with his brother and got to celebrate with the entire team.Tsitsidaily@tsitsidailyStef celebrating Max‘s victory!😍🥰10:45 AM · Dec 12, 2021315Stef celebrating Max‘s victory!😍🥰 https://t.co/zgayBy0DiYThe 23-year-old later called the experience "pure epicness" during a chat session with his fans on Twitter Spaces."It was pure epicness," he said. "It was a historical moment, in a way. Like it still gives me chills."Also Check Out: Updated Tennis Schedule 2022