Fast fact: 1,017 games caught, more than any Sox catcher ever. Lowdown: Varitek turns 35 April 11; his birthday is likely to be overshadowed by Dice-K’s expected Fenway debut that day against Ichiro and the Mariners. He bottomed out offensively last season, in part because of gluteus and knee injuries, but he doesn’t have the luxury of spending his spring working on his bat, not when he has to school Dice-K and essentially a new bullpen.