Athletics Roster & Staff

Marcus Jensen #59

Oakland native Marcus Jensen returns for his fifth season on the A's Major League coaching staff and his 13th in the A's organization. He took over as bullpen coach in 2018 after serving as the A's assistant hitting/catching coach from 2015-17. 

Jensen spent the 2014 season as the A's minor league roving hitting instructor. He joined the A's organization in 2007 as hitting coach for the A's affiliate in the Arizona Rookie League and served two years in that capacity. Jensen took over the managerial duties for that club in 2009 and guided the A's to a 141-136 (.509) record and one playoff appearance in five seasons. In 2013, he also served as the A's minor league roving catching instructor. 

A former catcher, Jensen was drafted by San Francisco out of Skyline HS in Oakland following the first round of the 1990 June draft as a compensation pick for the loss of free agent Craig Lefferts. He batted .184 with six home runs and 29 RBI in 145 games in seven seasons with seven different teams. 

Jensen made his Major League debut with San Francisco in 1996 and appeared in 39 games over two seasons with the Giants before he was dealt to Detroit in July, 1997. After spending parts of the 1998 and 1999 seasons with Milwaukee and St. Louis respectively, Jensen saw his most big league action with Minnesota in 2000 when he batted .209 with three home runs and 14 RBI in 52 games. He split the 2001 season between Boston and Texas and returned to Milwaukee in 2002, appearing in 40 games in his final big league campaign. Jensen spent the 2003 season at Triple-A Columbus in the New York (AL) farm system and played for Cancun in the Mexican League in 2004. He spent his final two seasons as a professional with Mesa (2005) and Reno (2006) of the independent Golden Baseball League. Jensen was also a member of the 2000 U.S. Olympic team that defeated Cuba for the gold medal. 

Jensen makes his offseason home in Scottsdale, Ariz., with his son, Marcus.