Robertson was recalled from Triple-A Salt Lake prior to Sunday's game against the Athletics, Bill Shaikin of the Los Angeles Times reports. The Angels had been getting by with only four outfielders for the last handful of games, so the addition of Robertson will give the team some added depth at the position. With only the struggling Matt Joyce and long-time minor-leaguer Efren Navarro ahead of him on the depth chart in left field, Robertson could have a shot at contending for regular at-bats.