The Mets introduced RHP Jason Vargas in Port St. Lucie on Sunday and moved INF TJ Rivera to the 60-day DL.
Vargas signed a two-year deal with the Mets after winning 18 games with the Kansas City Royals last season. Mets general manager Alderson said pitching coach Dave Eiland, who coached Vargas on the Royals, offered a strong endorsement of him as the Mets considered signing him.
"If he wins 18 games, we're pretty good," Alderson said. "We need to get back to a spot where we 7 to 8 guys making all of our starts, and Jason helps us do that."
Vargas expressed excitement about playing under manager Mickey Callaway, saying he looks forward to his leadership. He also feels comfortable about continuing to work with Eiland.
"It's definitely nice to have a familiar face," Vargas said. "I feel pretty good about being able to keep working with him."
Alderson indicated the Mets would not be making any more signings of major leaguers before the season begins, saying he "would be surprised, if not shocked, if anybody else comes walking into this clubhouse."
Vargas, 35, had a 4.16 ERA (4.67 FIP) and 1.33 WHIP with 134 strikeouts in 179.2 innings (32 starts) in 2017. He has a career ERA of 4.16, to go along with a 1.31 WHIP during his 12-year career.