Clayton Kershaw heads into what could be his final start at Dodger Stadium on Sunday unconcerned by talk of securing his legacy as the Los Angeles Dodgers chase an elusive World Series crown against the Boston Red Sox. The 30-year-old lefthander's future with the Dodgers has been the subject of intense speculation in recent weeks, with Kershaw free to opt out of the final two years of his contract at the end of this season. A year ago, Kershaw and the Dodgers came up short after losing in a seven-game duel with Houston.