3. Victor Martinez
2009 defensive stats: 82 starts, .982 FPCT, 4 errors.
Martinez, who was sensational after coming over from the Indians at the trading deadline last July, will get the majority of the starts behind the plate, with captain Jason Varitek serving as the capable veteran backup.
Neither is a particularly adept defensive catcher -- they combined to throw out 13 percent of basestealers last season -- but both are respected by pitchers, and the switch-hitting Martinez's offensive prowess will give the Sox far better production from the position over a full season than they had a year ago.
Globe Staff Photo / Bill Greene