Quentin dealt with knee issues much of the past two seasons and hit .177 with four home runs and 18 RBIs in 50 games last season for San Diego. He had two stints on the disabled list, missing 39 games at the start of the season with a bone bruise in his left knee and 58 games at the end of the year due to soreness in the same knee.
He's a career .252/.347/.484 hitter with 154 home runs and 491 RBIs in nine Major League seasons with the Diamondbacks (2006-07), White Sox (2008-2011) and Padres (2012-14) after being drafted out of Stanford in the first round in 2003 by Arizona.
Quentin was an American League All-Star and Silver Slugger winner in 2008 with the White Sox when he hit .288 with 36 homers and 100 RBIs. He earned his second All-Star berth in 2011 when he batted .254 with 24 homers and 77 RBIs, his fourth straight season with 20-plus homers.
The Braves are responsible for $8 million on Quentin's contract for this season, minus the Major League minimum of just over $500,000 that Seattle will assume.
Quentin is a right-handed hitter who has played left and right field in his career, though he could see time at first base in Tacoma to increase his options.