GLENDALE, Ariz. -- Jimmy Rollins will bat leadoff in Wednesday's Cactus League opener against the Chicago White Sox and, according to manager Don Mattingly, he'll probably be there Opening Day and for many games beyond that as well."That's the one guy we are pretty sure about, Jimmy is that leadoff guy," Mattingly said. "We don't truly have anyone else that fits in that role."Rollins has started 1,456 major-league games as a leadoff hitter, the most among active players aside from Ichiro Suzuki.