Ja son Dominguez will not be available to the Yankees for at least two months. The top outfield prospect is expected to mi s up to eight weeks with an oblique strain, manager Aaron Boone said Thursday. Its a pretty significant strain, so probably up to eight weeks until hes playing in games, Boone said before finishing a series against the Jose Barrero Jersey Ja son Dominguezs Yankees return will have to wait up to two more months. Newsday via Getty Images Dominguez suffered the injury on a check-swing Saturday at Triple-A Scranton/Wilkes-Barre. The 21-year-old switch hitter had been sidelined to start the year as he recovered from Tommy John surgery to repair the torn UCL that he suffered last September after an impre sive eight-game cameo with the Yankees. Dominguez had played 23 games in the minor leagues this season 20 of them as part of a rehab a signment before the Yankees and optioned him to Triple-A last Wednesday. Explore More He was batting .356 with a 1.014 OPS, six home runs and three steals. Though there was no spot for him in the big leagues to get everyday at-bats once he finished his rehab from elbow surgery, Dominguez was set to serve as insurance in case the Yankees had an injury in their outfield or to DH Giancarlo Stanton. Now, Dominguez will be out until August as he recovers from the oblique strain. Yankees Ja son Dominguez, sitting on a bucket during a workout at the New York Yankees Minor League complex in Tampa Florida. Charles Wenzelberg / New York Post Dominguez made the most of his late-season call-up last year before getting hurt, batting .258 with a .980 OPS and four home runs in eight games. His latest injury further weakens the Yankees outfield depth at Triple-A after Everson Pereira recently underwent season-ending internal brace surgery to repair a torn UCL. He and Dominguez are the only two outfielders on the 40-man roster not currently in the big leagues. Hyeon-jong Yang Jersey