Taijuan Walker extended his flawless spring to 18 scoreless innings, and Mike Zunino homered for the Seattle Mariners in a 3-2 victory Wednesday night over the Chicago Cubs. The 22-year-old Walker, looking to lock up a rotation spot, struck out six and walked one in six more shutout innings. ''I feel like each start, everything starts to get better,'' Walker said. I'm just trying to go out there and attack.'' Mariners manager Lloyd McClendon stopped short of putting Walker in the regular-season rotation, though. More...