Per jsonline: Missaki, 19, went 1-2 with a 3.41 ERA in six starts at Class-A Clinton in 2015. He walked only five batters in 34.1 innings pitched while producing 34 strikeouts. Opponents batted .244. His season was cut short as he underwent "Tommy John" surgery on his right elbow in May. Originally signed by Seattle as a non-drafted free agent on May 6, 2013, Missaki owns a career record of 7-6 with a 3.40 ERA in 24 games, including 20 starts, with opponents batting .236. He has recorded 111 strikeouts in just 106.0 innings pitched while issuing only 26 walks over his three seasons in the minor leagues. Missaki, who was born in Japan before moving to Brazil as a young child, participated in the 2013 World Baseball Classic for Team Brazil, appearing in one game (0.1ip on March 5 vs. China). At 16 years old, he was the youngest player in the tournament that year. He had Tommy John surgery last May and is still recovering from that reconstructive elbow surgery. Herrera, 18, spent his first professional season in the Dominican Summer League and went 4-2 with a 3.26 ERA in 14 starts. He limited opponents to a .228 batting average with 13 walks and 73 strikeouts in 80.0 innings pitched. He posted a 1.85 ERA over his final five starts of the season, going 2-1. Herrera was signed by Seattle as a non-drafted free agent on July 21, 2014. Peralta, 19, went 2-3 with a 4.11 ERA in 11 games (9 starts) with the Rookie Arizona Mariners in 2015. He walked only eight batters in 57.0 innings pitched while producing 67 strikeouts (second in the Arizona League). Opponents batted .242. Originally signed by Seattle as a non-drafted free agent on April 18, 2013, Peralta has gone 6-12 with a 3.58 ERA in 36 games (31 starts) over three minor-league seasons. He has held opponents to a .239 batting average with 47 walks and 158 strikeouts in 163.1 innings pitched