Jonathan Arturo Aro...grew up in the Dominican Republic idolizing Pedro Martinez.
Spent the entire season with Tacoma (AAA), posting a 6-1 record with a 3.16 ERA (15 ER, 42.2 IP), 48 SO to 11 BB and a .204 opponent average in 25 appearances (one start)...Began the season on the restricted list (4/6-5/30) due to a 50-game suspension for violating MLB drug program...Allowed five total earned runs in his first two outings and 3.0 IP of the season on 6/1 and 6/5...allowed just 10 earned runs for the remainder of the season in his 23 outings and 39.2 IP from 6/16-9/3...In his lone start on 7/7 at Sacramento, tossed 4.0 IP of one-run ball on one hit and struck out a career-high seven batters in the Rainiers' 2-1 victory...Following the season, played for Tigres del Licey in the Dominican Winter League, going 2-1 with a 4.76 ERA (12 ER, 22.2 IP) in 20 relief appearances.
Spent the majority of the season with Tacoma (AAA) while making one relief appearance for SEA on 6/20 at DET...On the season with Tacoma, posted a 3-2 record with one save and a 2.48 ERA (10 ER, 36.1 IP) while limiting the opposition to a .221 average across 24 appearances (one start)...Went 2-1 with a 1.26 ERA (4 ER, 28.2 IP) while limiting the opposition to a .172 average through his first 17 games (one start) with Tacoma from 4/9-5/31...His lone save of the season came on 5/5 vs, Salt Lake in a perfect inning in the Rainiers' 5-2 victory...Tossed 4.1 IP of one-hit ball on 5/31 vs. Salt Lake in his lone start of the season in the Rainiers' 5-3 loss...Recalled by SEA on 6/17 and made his one and only appearance in a Mariners uniform on 6/20 at DET, allowing one hit and one walk in 0.2 IP...optioned back to Tacoma on 6/21...Made two relief appearances for Tacoma before missing the remainder of the season on the seven-day DL with a right elbow/forearm strain.
Was 0-1 with 6.97 ERA (8 ER, 10.1 IP) in 6 relief outings with Boston… Made MLB debut, appearing 6 times in 4 stints with BOS, despite having never pitched above Single-A prior to 2015… Selected to Majors June 25 and made debut that night vs. BAL (1.1 IP, 4 H, R, 2 SO)...four stints in Majors (June 25-July 2, July 30-31, Aug. 23-25 & Sept. 8-end of year…In his final 3 ML outings following a 9/8 recall, held opponents to a .150 AVG (3x20) and allowed only 2 ER in 5.2 IP (5 K, 4 BB).
Spent the majority of the season with Greenville (A), making 25 relief appearances and earning South Atlantic League Mid-Season All-Star honors...Went 1-3 with a 2.27 ERA (17 ER, 67.1 IP), 74-to-22 SO/BB ratio and a .211 opponent average for Greenville...Named Red Sox Minor League Pitcher of the Month for April after opening the season with a 2.53 ERA (3 ER, 10.2 IP) with a .158 opponent average and two saves in his seven relief appearances...Made seven appearances (one start) for Salem (A), going 2-0 with a save and a 1.80 ERA (4 ER, 20.0 IP).
Spent the entire season with Lowell (A), going 5-3 with a 2.14 ERA (13 ER, 54.2 IP) with 49-to-12 SO/BB ratio in his 15 appearances (one start).
Made 11 appearances (four starts) for the GCL Red Sox (R) and went 3-4 with a 4.66 ERA (20 ER, 38.2 IP) and 34-to-9 SO/BB ratio.
Made his professional debut with the DSL Red Sox (R), posting a 2-2 record with a 3.06 ERA (16 ER, 47.0 IP) and 38-to-4 SO/BB ratio in nine appearances (six starts)...Posted a 1.82 ERA (6 ER, 29.2 IP) with 23-to-2 SO/BB ratio in his final five starts.