One of the New York Mets' top prospects has been on a tear at the plate to start the 2026 season. And now, he's even showing off his ability to produce in the clutch with a game-winning hit. A.J. Ewing, New York's No. 3 prospect for 2026 on MLB Pipeline , hit a walk-off single for the Triple-A Syracuse Mets on Thursday. With runners on second and third base and two outs in the bottom of the ninth inning of a 2-2 game, the 21-year-old laced a 1-0 fastball to right field to give his team the 3-2 win over the Rochester Red Wings, the Triple-A affiliate of the Washington Nationals. Ewing has been a dominant hitter no matter what minor league level he's played at so far this year. The 2023 fourth-round draft pick started the season at Double-A, where he hit .349 in 18 games with two home runs, seven RBIs, and 12 stolen bases. That earned him a quick promotion to Triple-A at the end of April, where he's continued his impressive offensive campaign. Mets might have no choice but to add A.J.…