After spending his entire Major League career with the Boston Red Sox, free-agent outfielder Jacoby Ellsbury has reportedly signed a seven-year deal to join the rival New York Yankees.

Ellsbury is the first high-profile Red Sox player to join the other side of baseball’s most storied rivalry since Johnny Damon went from Boston to New York after the 2005 season.

The Yankees finished tied for third place in the AL East division in 2013 with an 85-77 record, and their lineup could certainly use a player with Ellsbury’s offensive talent after finishing 16th in runs scored, 24th in batting average, 23rd in on-base percentage and 27th in slugging percentage.

Ellsbury, 30, hit .298 with nine home runs, 53 RBIs and 52 stolen bases in 134 regular-season games for the Red Sox in 2013. He batted .344 with zero home runs, six RBIs and six steals in 16 postseason games as part of Boston’s World Series-winning roster.