Baltimore Orioles

Top prospects Yusniel Diáz, Ryan Mountcastle among Orioles' 18 spring training nonroster invitees

Several of the Orioles' top prospects who aren't on the 40-man roster, including outfielders Yusniel Díaz and Ryan McKenna, infielder Ryan Mountcastle and right-hander Dean Kremer, highlight the list of 18 nonroster invitees for spring training next month in Sarasota, Fla.

Díaz and Kremer, who were each acquired in the Manny Machado trade with the Los Angeles Dodgers in July, went right to Double-A Bowie as part of the new influx of talent in the organization. Díaz, 22, hit two home runs in the All-Star Futures Game last year and ranks as the No. 37 prospect in the game, according to Baseball America. Kremer, 23, led the minors with 178 strikeouts last season. A third piece from that trade, 22-year-old reliever Zach Pop, was also invited to spring training.


McKenna, 21, was the one of the organization's breakout prospects last year, batting .377 with a 1.023 OPS at High-A Frederick before slowing down at Bowie in the second half, though he found his swing again in the Arizona Fall League. In 2017, Mountcastle had a similar season where he started hot in Frederick before scuffling at a higher level, but the 21-year-old rebounded for a strong year at Bowie in 2018.

While the 40-man roster features several new players from last season whom the team will also get a look at come February, the list of nonroster players invited also includes a handful of players who were on the major league roster in years past but were recently designated for assignment, including left-handers Sean Gilmartin and Chris Lee, right-hander Gabriel Ynoa, catcher Andrew Susac and infielder Jace Peterson.


All five were outrighted off the 40-man roster in the past year but remained in the organization.

Outfielder Mike Yastrzemski, the 28-year-old grandson of Hall of Famer Carl Yastrzemski and a longtime Orioles farmhand who has been at Triple-A Norfolk for most of the past three seasons, also earned an invite to major league camp to be part of the team's blossoming outfield group.

Free-agent invitees include right-handers Bo Schultz, Gregory Infante and Josh Lucas, catcher Carlos Pérez, and infielders Chris Bostick and Zach Vincej.

Schultz, 33, last pitched in the majors in 2016 with the Toronto Blue Jays but had a 1.43 ERA over two levels in the Pittsburgh Pirates organization last year after Tommy John elbow reconstruction surgery in 2017. Infante, 31, had a 3.13 ERA for the Chicago White Sox in 2017, but struggled last year. Pérez, 28, provides catching depth from the free-agent market, having played parts of the past four seasons in the majors, most recently with the Texas Rangers.

With Chance Sisco and Austin Wynns on the 40-man roster, Pérez and Susac will fill out that group along with Martin Cervenka, who broke out with 15 home runs last year at Double-A Bowie.Pitchers and catchers report to spring training Feb. 12, with their first workout the following day, while position players report Feb. 17, ahead of the first full-squad workout Feb. 18.

Orioles nonroster invitees

IF Chris Bostick

C Martin Cervenka


OF Yusniel Díaz

LHP Sean Gilmartin

RHP Gregory Infante

LHP Chris Lee

RHP Josh Lucas

OF Ryan McKenna


IF Ryan Mountcastle

C Carlos Pérez

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IF Jace Peterson

RHP Zach Pop

RHP Bo Schultz

C Andrew Susac


IF Zach Vincej

OF Mike Yastrzemski

RHP Gabriel Ynoa