First name is pronounced "roos-NAY."...Established residency in Haiti before signing with the Red Sox...His father, Julio Castillo Hernandez, and his grandfather, Orlando Castillo, both played baseball in Cuba's major league, Serie National...Cuban outfielder signed a 7-year major league contract with the Red Sox on 8/23/14...Enters the season ranked by Baseball America as the No. 3 prospect in the Red Sox system and the No. 21 prospect overall in baseball...In 360 games over 5 seasons in Cuba's major league, Serie Nacional, hit .319 (403-for-1,265) with 75 2B, 11 3B, 51 HR, 99 BB, 256 R, 76 SB, a .383 OBP, .516 SLG, and .899 OPS (including postseason)...Spent all 5 Serie Nacional campaigns with his hometown team, Ciego de Avila...Appeared primarily in CF and RF...Also played 2B and 3B in both 2008-09 and 2009-10 seasons, and played some LF in 2009-10...Last played in Cuba during the 2012-13 season...Hit .274 with 6 2B, 2 3B, 6 HR, and 29 RBI over 68 games...Struck out fewer times (29) than he walked (31)...During the 2011-12 season, hit .342 in 113 games with 60 XBH, including 21 HR...Helped Ciego de Avila to the Serie Nacional Championship...During the 2010-11 season, set career highs with 22 HR and 95 RBI...Also represented Cuba in the Baseball World Cup and the Pan American Games in 2011...Participated in the 2015 Red Sox Rookie Development Program.
Signed a 7-year major league contract with the Red Sox on 8/23/14...Played 11 minor league games and then 10 major league games in his 1st pro action in the U.S...Reached base safely via hit or walk in 9 of 10 games for BOS, all starts in CF, batting .333 (12-for-36) with 6 R, 2B, 2 HR, 6 RBI, 3 BB, and a HBP...Was successful in all 3 SB attempts...In 11 minor league games, all in playoff action, hit .293 (12-for-41) with 7 R, 4 2B, HR, 5 RBI, 5 BB, and 2 SB...Helped the Rookie-level Gulf Coast League Red Sox and Triple-A PawSox to their league titles...After signing with BOS, was optioned to the GCL and played 2 games (1-for-5, BB)...Made U.S. pro debut in Game 2 of the GCL Championship Series on 8/31 vs. the GCL Yankees1, going 1-for-2 as the DH...Transferred to Double-A Portland on 9/2 following the GCL season and played 4 postseason games to close out the Sea Dogs' campaign (.357, 5-for-14, 4 R, 2 2B, 2 RBI, BB, SB)...Transferred to the PawSox on 9/8 and played in 5 more playoff games, winning the Governor's Cup and losing the Triple-A Championship Game (.273, 6-for-22, 3 R, 2 2B, HR, 2 RBI, 3 BB, SB)...Hit a leadoff home run in final minor league contest, the Triple-A Championship Game on 9/16 against Omaha (KC), a 4-2 loss...Recalled on 9/17 and made ML debut that night at PIT, going 1-for-4...1st hit was an infield single off Francisco Liriano in the 4th inning. Drew a bases-loaded walk in the 6th inning on 9/24 vs. TB for 1st career RBI...Started the club's last 9 games...Had 3 straight multi-hit games from 9/25-27 (.700, 7-for-10, 2B, 2 HR, 5 RBI)...Drove in at least 1 run in 4 straight games from 9/24-27 (6 total RBI)...His 1st major league XBH was a 3-run HR on 9/25 vs. TB off Steve Geltz in the 3rd inning...Homered again the next night in the 7th inning vs. NYY's Shawn Kelley...Following the season, posted a combined .342/.375/.452/.827 line with 5 2B, HR, 7 RBI, 5 BB, and 3 SB between Surprise of the Arizona Fall League (8 G) and Caguas of the Puerto Rican League (10 G)...Was named to the AFL's Rising Stars Team.