ST. LOUIS >> Yasmani Grandal was not the hottest hitter at Triple-A Oklahoma City when the Dodgers' catcher went out on a rehab assignment this week. Grandal even admitted as much Friday at Busch Stadium.Shortstop prospect Corey Seager went 6 for 6 in a game against Salt Lake on Thursday, one hit short of tying a Pacific Coast League record and a triple shy of the cycle.