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Field Staff


Ryan Christenson is the new manager of the Nashville Sounds and will be at the helm for the 2017 season. Christenson, 42, will manage at the Triple-A level for the first time after leading the Double-A Midland RockHounds to Texas League titles in 2015 and 2016.

Christenson was the Texas League Manager of the Year in 2016 and sports a career managerial mark of 323-236 (.578) after guiding the RockHounds to 83 wins in 2015 and 78 in 2016. His first season as manager was in 2013 with the Single-A Beloit Snappers. In 2014, he managed the Advanced-A Stockton Ports. All four of Christenson's teams have finished a minimum of 15 games over .500, and as high as 30 games over the even mark.

The Redlands, Calif. native was selected by the Athletics in the 10th round of the 1995 MLB Draft and played parts of six seasons in the big leagues. He spent time with the A's (1998-2001), Arizona Diamondbacks (2001), Milwaukee Brewers (2002) and Texas Rangers (2003). Christenson resides in Scottsdale, Ariz. with his wife and two children.


Rick Rodriguez enters his second season as pitching coach for the Sounds after helping guide the Sounds to the American Southern Division Championship in 2016.

Prior to Nashville, Rodriguez spent one season serving in the same role with Advanced-A Stockton. He was Triple-A Sacramento's pitching coach in 12 of the last 17 seasons, including his most recent stint in 2013-14. He also served as the A's bullpen coach from 2011-12 and as the manager of Advanced-A Modesto in 2003.

This is his 33rd year in the A's organization, including seven seasons as a player and 24 as a minor league coach.

The East Bay, Calif. native was selected by Oakland in the second round of the 1981 MLB Draft. In 31 career MLB appearances, Rodriguez compiled a 3-4 record with a 5.73 ERA. He pitched with Oakland (1986-87), Cleveland (1988) and San Francisco (1990).

Rodriguez resides in Folsom, California.


Eric Martins enters his second season as Nashville's hitting coach in 2017. Martins, 44, served in the same role for Double-A Midland in 2015.

Prior to his one season in Midland, Martins was a scout for the A's since 2007. During his time as a scout, Martins was responsible for signing A.J. Griffin, Daniel Robertson, and 2014 first-round selection Matt Chapman.

The East Los Angeles, Calif. native was selected by Oakland in the 17th round of the 1994 MLB Draft out of Long Beach State. He played professionally for 11 seasons, including parts of four seasons with A's Triple-A affiliates. He was a part of the 1997 Edmonton team that captured the Pacific Coast League championship and the 1999 Vancouver team that won the Triple-A World Series.

Martins resides in Placentia, California.


Brad LaRosa returns to Nashville for his third season with the club and 10th as the athletic trainer for Oakland's top minor league affiliate in 2016. Prior to joining the Athletics, he spent five seasons at Double-A with St. Louis (2005-07) and Miami (2003-04).

LaRosa has been recognized with several different accolades and awards, including the PBATS 2016 Pacific Coast League Athletic Trainer of the Year. In 2007, LaRosa was honored as the PBATS Minor League Trainer of the Year. He is a certified member of the National Athletics Trainer Association and the Illinois Athletics Trainer Association. LaRosa obtained both his bachelor's and master's degrees in kinesiology from Southern Illinois University at Edwardsville.

LaRosa resides in Illinois with his wife and two children.


Henry Torres joins the Nashville staff as the strength and conditioning coach after spending the 2016 season in the same capacity on Christenson's staff with Double-A Midland. Torres spent 2015 with Advanced-A Stockton and 2014 with Short-season Vermont.

Torres began his professional baseball career in 2013 with the Kansas City Royals organization. Torres earned his bachelor's degree in kinesiology from the University of Texas-San Antonio and is a certified member of the National Strength Coaches Association (NSCA) with the title of Registered Strength and Conditioning Coach (RSCC).

Torres resides in San Antonio with his fiancé, Rudi.