Veteran catcher A.J. Pierzynski has agreed to a deal with the World Series champion Boston Red Sox, according to sources. The Red Sox needed a veteran to catch their championship team, and ultimately they liked the idea of a Pierzynski, an excellent offensive catcher who has respected game-calling skills, handling their staff. In the end, they probably needed to either sign Pierzynski or bring back Jarrod Saltalamacchia, who was a part of their championsip team last year. Early on, they offered a two-year deal to Salty. Boston was always hesitant to do a very long deal with a catcher as it is has two very good catching prospects, in Blake Swihart and Christian Vazquez, who could be ready fairly quickly. The Red Sox have a strong backup in David Ross. The Twins, Marlins and White Sox are among teams still looking for a catcher, so Saltalamacchia has a few options.