Match detailsFixture: Reilly Opelka vs Jack Sock Date: 28 September 2020Tournament: Roland Garros 2020Round: First round (Round of 128)Venue: Paris, FranceCategory: Grand SlamSurface: Red clayPrize money: Approx €38,000,000Match timing: 11 am CEST, 2.30 pm ISTLive telecast: USA - NBC / Tennis Channel | India - Star Sports / Disney+ Hotstar VIPAlso check out: The Complete French Open 2020 Schedule Reilly Opelka vs Jack Sock previewReilly Opelka locks horns with Jack Sock in an all-American first-round clash at the French Open on Monday.Opelka, ranked 36 in the world, had a solid campaign at the Cincinnati Masters, advancing to the quarter-finals before retiring midway through his match against Stefanos Tsitsipas. He also won his maiden ATP title in February, defeating Yoshihito Nishioka in the Delray Beach Open final.Opelka was handed a tough draw at last month's US Open and was ousted in four sets by seventh seed David Goffin in the first round. The 23-year-old has not had any preparation on clay ahead of the French Open, which could work against him in his opening round.The complete Men's and Women's draws for 2020 can be found at: https://t.co/DRNpI1tCCA#RolandGarros pic.twitter.com/1bYjaj9wyS— Roland-Garros (@rolandgarros) September 24, 2020Jack Sock, on the other hand, had to come through qualifying to earn a spot in the main draw. The 28-year-old's joint-best Grand Slam result was at Roland Garros when made the fourth round in 2015 and he will be hoping to make another deep run this year.Sock, who has plummeted down the rankings the past few years, showed glimpses of returning to form at the US Open, where he defeated Pablo Cuevas before losing to Adrian Mannarino in straight sets in the second round.Reilly Opelka vs Jack Sock head-to-headOpelka and Sock have faced off once before, in the round of 16 at the 2018 Delray Beach Open. Opelka clinched a three-set victory, coming back from a set down to win 4-6, 7-5, 6-3. The duo have never locked horns on clay.Reilly Opelka vs Jack Sock predictionJack Sock has had some good results on the Parisian clayThis promises to be a hard-fought contest between the two Americans. While Opelka is the higher-ranked player, Sock has more experience at Roland Garros.Both players have big serves and use their powerful forehands to dictate rallies from the baseline. Sock looked in good touch in qualifying and should be able to eke out the win.Prediction: Jack Sock to win in five sets.Follow Sportskeeda to get the latest French Open 2020 Results and Schedule