​Young Mets slugger Mark Vientos began his rehab assignment Friday with Double-A Binghamton. Vientos took three at-bats, starting as the team’s DH, finishing 0-for-2 with a walk and two strikeouts. It’s the first time Vientos has seen the field since fracturing his right hand after being hit by a pitch back on July 9. In 73 games this season, Vientos was slashing .211/.256/.388 with an OPS of .644 to go along with 11 home runs and 35 RBI.In that same game, Mets No. 1 prospect Jefferson Rojas had himself a day. The infielder went 2-for-5 with three RBI, two coming off his third home run in the Mets organization. The third RBI was on a single that gave the Rumble Ponies a 5-0 lead. Rojas has played 14 games in Binghamton and is slashing .281/.328/.544 with an OPS of .872. “That ball is way, way gone!”Jefferson Rojas hits his third home run for Double-A Binghamton! pic.twitter.com/2wlqOc6x7P— SNY Mets (@SNY_Mets) August 21, 2026Wenninger unhittable in SyracuseFor Triple-A Syracuse, Jack Wenninger had his best start in quite some time. The right-hander threw five hitless innings, walking two batters and striking out six batters.Wenninger, the organization’s No. 11 prospect, has had a tough first season in Triple-A. Even with the hitless outing, his ERA sits at 4.17 with a 1.38 WHIP. However, Friday is the second of back-to-back solid outings for the once-touted prospect. In his last start, Wenning struck out eight batters in five innings of two-run baseball. On the offensive side, Syracuse received contributions from up and down the lineup. Nick Morabito went 1-for-5 with an RBI while Billy Amick came in to score in his four at-bats (0-4).  Emilien Pitre went 1-for-4 with a walk while Ronny Mauricio drove in a run and finished 2-for-4. Hayden Senger was perfect at the plate, going 2-for-2 with two walks and driving in a run.