Yankees trade top prospect for Mariners' Paxton
6:42 PM ET
The other two prospects going to Seattle are outfielder Dom Thompson-Williams and right-handed pitcher Erik Swanson.
Paxton, who turned 30 this month, has spent his entire career with Seattle. He went 11-6 in 28 starts last season with a 3.76 ERA. His 208 strikeouts ranked ninth in the American League.
The move bolsters the Yankees’ thin starting rotation, which contributed to New York’s loss in the AL Division Series to the eventual World Series champion Red Sox. He joins a rotation projected to include right-handers Luis Severino and Masahiro Tanaka and left-hander CC Sabathia.
Paxton made $4.9 million last season and is eligible for salary arbitration. He can become a free agent after the 2020 season.
Sheffield, a first-round pick of the Indians in 2014, is the Yankees’ No. 1 prospect and made his major league debut in September with three relief appearances.
The 22-year-old was No. 12 on Keith Law’s 2018 midseason rankings of all prospects in baseball. He went 7-6 with a 2.48 ERA in 25 games (20 starts)