GLENDALE, Ariz. >> A year ago, then-manager Don Mattingly penciled in A.J. Ellis as the Dodgers' starting catcher for four of Clayton Kershaw's first five starts of the season, including Opening Day. At the time Mattingly said his decision was the result of a lot of conversations with Kershaw. Maybe Dave Roberts will ultimately have a lot of conversations with Kershaw about who he can expect to see behind the plate.