Mariners acquire RHP Adrian Sampson from Pittsburgh for LHP J.A. Happ

Seattle Mariners Executive Vice President & General Manager of Baseball Operations Jack Zduriencik announced the club has acquired right-handed pitcher Adrian Sampson from the Pittsburgh Pirates in exchange for left-handed pitcher J.A. Happ.

- Adrian Sampson, RHP, acquired in trade with Pittsburgh (on AAA Indianapolis roster)
- J.A. Happ, LHP, traded to Pittsburgh

Sampson was not on the Pirates 40-man roster, so the Mariners 40-man is now at 39 players. He is scheduled to report to AAA Tacoma in the next few days.

Sampson, 23, is a Redmond native who was drafted by the Pirates out of Bellevue College in 2012 after attending Skyline High School in Sammamish. With AAA Indianapolis this season, he is 8-8 with a 3.98 ERA (55 ER, 124.1 IP) with 95 strikeouts in 21 starts. Amongst International League leaders he ranks tied for 1st in starts, 4th in strikeouts and 3rd in innings pitched. In four minor league seasons, he is 24-23 with a 3.87 ERA (204 ER, 474.0 IP) with 333 strikeouts in 85 games including 82 starts. He played for Scottsdale in the Arizona Fall League following the 2014 season where he posted a 2.25 ERA (3 ER, 12.0 IP) in 10 relief appearances. He was rated by Baseball America as the 15th-best prospect in the Pirates organization entering the 2015 season.

Happ, 32, was 4-6 with a 4.64 ERA (56 ER, 108.2 IP) with 82 strikeouts in 21 games including 20 starts for the Mariners this season. He was acquired from the Toronto Blue Jays on Dec. 3, 2014 in exchange for outfielder Michael Saunders. In nine Major League seasons with Philadelphia, Houston, Toronto and Seattle, he is 55-59 with a 4.29 ERA (452 ER, 949.1 IP) with 790 strikeouts in 185 games including 160 starts.