Nieves is in his first season as Marlins pitching coach, coming off two-plus campaigns as pitching coach with Boston Red Sox...In 2014, Boston's relievers posted a 3.33 ERA, the lowest mark for the club since 2007 (3.10). Oversaw a staff of 24 pitchers that season, including seven rookies...Served as pitching coach for 2014 American League All-Star Team on July 15 at Target Field in Minnesota. Was also part of Major League Baseball's All-Star Series Japan in November 2014...Boston's pitching staff posted a 3.79 ERA in 2013, the lowest club mark since a 3.75 ERA in 2002. The 3.79 ERA was sixth-best in American League and nearly a full run lower than 2012 (4.70)...In 2013, Boston's pitchers set single-season franchise records in both strikeouts (1,294) and SO/9.0 IP (8.0). The staff also recorded a club-record 47 double-digit strikeout games...Joined Red Sox after 14 seasons in White Sox organization, including final five years (2008-12) as White Sox' bullpen coach...Working with long-time pitching coach Don Cooper, helped guide a White Sox pitching staff that posted the sixth-best ERA in the American League (4.08) from 2008-12, while the bullpen's 3.88 ERA ranked fifth in that time. White Sox staff set club records in strikeouts three straight years from 2010-12, including a franchise-best 1,246 in 2012. Chicago's bullpen set a record with 479 strikeouts in 2011...In 2012, oversaw a White Sox bullpen that used eight rookies before September. Included in that group were setup man Nate Jones, who went 8-0 with a 2.39 ERA and tied for Major League lead in relief victories, and closer Addison Reed, who tied for seventh in the AL with 29 saves...Spent nine years (1999-2007) as a pitching coach in the White Sox' minor league system with stints at Rookie-level Tucson (1999-2001), Double-A Birmingham (2002-04), and Triple-A Charlotte (2005-07)...Was chosen as pitching coach for 2006 World Team in participating in All-Star Futures Game at PNC Park in Pittsburgh. In 2002, was the pitching coach for the Southern League West Division All-Star Team...From 1998-99, was the general manager/manager for Caguas in the Puerto Rican Winter League...Began coaching career in the Yankees organization, holding the positions of pitching coach with Rookie-level Tampa (1992), Class A Oneonta (1993), and Class A Greensboro (1994, 1996), and pitching coordinator with Double-A Norwich (1995).
Over three Major League seasons with Milwaukee, posted 32-25 record with one save, 4.71 ERA and 352 strikeouts in 94 appearances (81 starts)...Set career highs with 14 wins, 195.2 innings, and 163 strikeouts in 1987. Ranked fifth in American League with an average of 7.5 strikeouts per nine innings... Became the first pitcher in Brewers history and Puerto Rican native to throw a no-hitter when he accomplished the feat at age 22 on April 15, 1987 at Baltimore (128 pitches)...Finished tied for fourth in the AL with three shutouts as a rookie in 1986...Named Texas League Pitcher of the Year in 1985 with Double-A El Paso...Signed by Milwaukee out of high school in 1983.
Married to Marilia...has four children: Natalia, Alondra, Marilia, and Isabella...graduated from Avon Old Farms High School in Connecticut in 1983...compiled a career record of 19-1 with a 1.05 ERA in 3 years at the school...In addition to baseball, captained the cross-country and basketball teams...is in Avon Old Farms High School's Hall of Fame.