The New York Mets announced on Monday that Carson Benge, the organizations top position player prospect, has made the Opening Day roster and will be the starting right fielder. [Draft your Yahoo Fantasy Baseball team for the 2026 MLB Season]Benge, 23, was the Mets 2024 first-round draft pick (No. 19 overall) out of Oklahoma State. He ascended through the minors last season, going from high Single-A to Triple-A. In spring training, Benge hit .366/.435/.439 in 41 at-bats. The left-handed hitter is expected to bat eighth in the Mets lineup. He earned it, he had a hell of a camp, Mets manager Carlos Mendoza said. We are all excited to watch this kid play. "He earned it.. we are all excited to watch this kid play"Carlos Mendoza talks about Carson Benge making the Mets' Opening Day roster pic.twitter.com/03WSz4esQ0 SNY Mets (@SNY_Mets) March 23, 2026Benge was ranked as the Mets top position player prospect by MLB.com and The Athletic, second behind pitcher Nolan McLean (his college teammate at Oklahoma State), who will be part of the Mets starting rotation. He was also among the top 20 prospects in all of baseball. Juan Soto was the Mets right fielder last season, starting 157 games at the position. However, he was moved to left field during spring training to accommodate Benges stronger throwing arm in right. (Additionally, Soto played left field for the Dominican Republic in the World Baseball Classic.)Benges position became assured when Mike Tauchman, who also had a strong spring with an .820 OPS and one home run, tore the meniscus in his left knee. Cardinals top prospect JJ Wetherholt also makes Opening Day rosterWelcome to the Show, JJ! pic.twitter.com/AqbEQz8mCD St. Louis Cardinals (@Cardinals) March 23, 2026Another top MLB prospect will be in his teams major-league lineup on Opening Day. Shortstop JJ Wetherholt has made the Cardinals big-league roster, president of baseball operations Chaim Bloom told reporters on Monday. Wetherholt, 23 was the Cardinals 2024 first-round pick (No. 7 overall) out of West Virginia. He was ranked as the Cardinals No. 1 prospect by MLB.com and The Athletic, and the No. 5 prospect in all of baseball. Hes gone about his business this entire camp like a big-leaguer goes about his business, Bloom told reporters. Its not just what he does on the field, its how he does everything. He is very consistent, very professional. Spiltting last season between Double-A and Triple-A , Wetherholt batted .306/.421/.510 overall with 28 doubles, 17 home runs, 59 RBI and 23 stolen bases. He will hit leadoff or bat second in the St. Louis lineup to begin the season.Wetherholts spring wasnt as impressive as Benges with a .212/.386/.394 average, but he hit two homers with seven RBI in 33 at-bats. Yet the Cardinals had a need at second base after trading All-Star Brendan Donovan to the Seattle Mariners in a three-team deal also involving the Tampa Bay Rays before spring training. Thats where Wetherholt will play alongside shortstop Masyn Winn, who was credited with 21 Outs Above Average and two Defensive Runs Saved last season.