BOSTON, Mass. – Seattle Mariners Executive Vice President & General Manager of Baseball Operations Jerry Dipoto announced today the following roster moves.


  • Ryne Harper, RHP, selected from AAA Tacoma.
  • Rob Whalen, RHP, optioned to AAA Tacoma.


Seattle’s Major League, 40-man roster, is now full at 40 players.


Harper (#32) will be uniform and available for today’s (10:35 am PT/1:35 pm ET) game against the Boston Red Sox at Fenway Park. He will be making his Major League debut in his first appearance.


Harper, 28, is 2-0 with 3 saves and a 1.89 ERA (4 ER, 19.0 IP) with 24 strikeouts and 9 walks in 15 relief appearances with AAA Tacoma this season. In his last 7 appearances with the Rainiers (5/3-c), he is 2-0 with 3 saves and a 0.00 ERA (0 ER, 8.2 IP), scattering 4 hits while striking out 10 and walking 1. Overall, he has recorded at least 1 strikeout in 14 of his 15 outings, including 8 games with 2-or-more strikeouts. Harper is averaging 11.37 strikeouts-per-9.0-innings (24 K, 19.0 IP). The 6-foot-3, 210-pound right-hander has limited left-handed batter to a .150 (3×20) average with 7 strikeouts and 2 walks while right-handed batters are hitting .255 (12×47) with 17 strikeouts and 2 walks vs. Harper.


Harper was acquired by the Mariners as the Player to Be Named later from the Atlanta Braves on Dec. 11, 2015 completing a trade that sent RHP Jose Ramirez to Atlanta on Dec. 4, 2015. He made 42 relief appearances with AA Jackson last season, going 4-5 with 6 saves a 2.51 ERA (19 ER, 69.0 IP) with 95 strikeouts and 25 walks. His 95 strikeouts ranks 14th in the Southern League last season. He also led Southern League relievers in strikeouts-per-9.0-innings (12.57/95 K, 69.0 IP) and fewest baserunners-per-9.0-innings (10.46). In parts of 7 minor league seasons with Atlanta (2011-15) and Seattle (2016-17), he is 26-17 with 29 saves and a 2.21 ERA (87 ER, 354.0 IP) with 436 strikeouts and 113 walks in 229 career relief appearances. The native of Nashville, TN, was originally selected by Atlanta in the 37th round of the 2011 MLB First-Year Player Draft out of Austin Peay University.


Whalen, 23, was recalled to Seattle for the second time on May 24. He made his Mariners debut as the starting pitcher yesterday, and was charged with the loss after allowing 5 ER in 5.1 IP. He was with Seattle for one day (May 5) before being optioned back to Tacoma post-game on May 6 but did not appear in a game. Rob made 4 starts with AAA Tacoma and was 0-2, with a 4.09 ERA (10 ER, 22.0 IP). Whalen began the season on the 10-day disabled list with right shoulder inflammation before being activated and optioned to Tacoma on April 27.


Whalen was acquired by the Mariners along with RHP Max Povse from the Braves for OF Alex Jackson a Player to be Named Later (LHP Tyler Pike) on Nov. 28, 2016. The 6-foot-2, 220-pound right-hander went 1-2 with a 6.57 ERA (18 ER, 24.2 IP) with 25 strikeouts and 12 walks in 5 starts with the Braves last season. Whalen earned the win in his Major League debut, Aug. 3, 2016 vs. Pittsburgh, allowing 4 runs on 4 hits, 4 walks and 5 strikeouts over 5.0 innings pitched. He was placed on the 15- day disabled list on Aug. 25 with a right shoulder fatigue and transferred to the 60-day disabled list on Sept. 17. Whalen began the 2016 season with AA Mississippi, where he compiled a record of 7-5 with a 2.49 ERA (28 ER, 101.1 IP) with 94 strikeouts and 37 walks in 18 starts. After being promoted to AAA Gwinnett on July 14, Whalen went 0-1 with a 1.93 ERA (4 ER, 18.2 IP) with 18 strikeouts and 7 walks in 3 starts.