TAMPA, Fla. — Justus Sheffield allowed just three hits over six innings, leading the Tampa Yankees over the Clearwater Threshers in a 1-0 win in the second game of a doubleheader on Tuesday.

Sheffield (2-0) struck out three and walked one. The left-hander was one of the young prospects the Yankees acquired in the Andrew Miller trade to the Indians.

The 20-year-old struck out a career-high 11 hitters over six innings in his first start for Tampa on Aug. 5. In three starts for the Yankees affiliate, Sheffield has a combined 1.04 ERA with 17 strikeouts and just 10 hits allowed in 17 1/3 innings.

He helped the Yankees’ staff recorded its 13th shutout of the year in beating Clearwater. The game’s only run was scored in the bottom of the second inning. After reaching base on a walk, Zack Zehner advanced to second on a wild pitch, went to third on a walk by Thairo Estrada, and then scored on a double play.