Jan 18 (Reuters) - The Boston Red Sox have avoided arbitration with Jacoby Ellsbury by agreeing to a one-year, $9 million contract with the center fielder, the team's website reported on Friday. Ellsbury, 29, was plagued by injury in 2012, suffering a partially dislocated right shoulder in the home opener in April and did not return until July. He hit .271 with four home runs and 26 runs batted in (RBIs) while playing 74 games.