"Circumstances have to be right" for the Mets to call up SS prospect Amed Rosario and 1B prospect Dominic Smith, Mets GM Sandy Alderson said on Friday.
"Right now, we think the best thing for the both of them is to continue to play in Las Vegas" until the Mets' situation (regarding being in or out of the postseason race) "clarifies itself," Alderson said.
When asked whether Rosario would improve the team, Alderson referred to Jose Reyes, whose recent play the GM praised.
Rosario is the best prospect in baseball, according to Keith Law of ESPN's midseason Top 50 prospects list.
He was also ranked No. 1 by Law on his list at the beginning of the season, and was ranked No. 3 in January.
"Rosario remains on top as he rots in Triple-A", writes Law, "and he'll be there until Godot shows up to call him to the majors, I guess, even with the Mets getting a composite .240/.313/.409 line from their shortstops along with below-average defense."
Reyes, the Mets' current starting shortstop, is hitting .215 with a .284 OBP and .370 SLG with eight HR and 29 RBI in 83 games for the Mets this season.
Law wrote earlier this season that Rosario "has MVP potential as a true shortstop who will be above average defensively and projects to hit .300 with some walks and power."
Rosario, 21, is hitting .327 with a .365 OBP and .474 SLG with seven HR, 16 doubles, seven triples, 16 stolen bases, 55 runs scored, and 52 RBI in 83 games this season for Triple-A Las Vegas.
"If we're playing well, there's no real urgency to bring him up," Alderson recently said about Rosario. "If we're playing poorly, I'd hesitate to bring him up because he'd be looked at as our potential savior. So, it's kind of a double whammy at the moment."
Rosario said Wednesday night before playing in the Triple-A All-Star Game that he's ready for the pressure of New York.
"I don't really pay attention to what else is going," Rosario said through a translator. "I just keep focusing on my work and come every day to the field and keep working hard. That's all I can control so that's what I really focus on. Playing in New York though, that's going to be a lot of pressure because of it being a big city, but I'm ready for it."