Mets shortstop Amed Rosario will be called up from the minors and make his MLB debut on Tuesday against the Colorado Rockies, GM Sandy Alderson said on a conference call on Monday.
The 21-year-old Rosario, who was ranked MLB.com's No. 2 prospect and Baseball America's No. 4 prospect in their midseason top 100 lists, is hitting .328 with seven home runs, 58 RBIs and 19 stolen bases in 94 games with Triple-A Las Vegas this season.
"We wouldn't bring him up to play him on a part-time basis," Alderson said about Rosario.
"We wanted to get through the deadline and try to resolve some of the positional issues we had," Alderson said. "We've seen that Cabrera has moved to second and then third. We think Jose Reyes can also play well at second. Walker can play some first base and third base. So, the flexibility our infielders poses now give Amed the opportunity to play shortstop."
Alderson said minor league first baseman Dominic Smith, whom Baseball America and MLB.com ranked the organization's No. 2 prospect, "shouldn't be far behind."
Smith, 22, has a .343/.396/.539 batting line with 16 home runs and 72 RBIs in 105 games with Las Vegas.
Rosario, who signed with the Mets as a non-drafted free agent in 2012, has a career .291/.336/.405 batting line in the minors with 17 home runs, 205 RBIs and 60 stolen bases in 452 games. He appeared in the MLB Futures Game earlier in July.