No, the one I'm thinking of was a Hispanic name. It was a combination of two different players---the first name of one and the last name of another. And one of them never played for the Sox.
He claimed that his favorite current player was 'Manny Ortiz'.
I'm no Boston fan but it's my understanding that:
1) There's an 'Ortez' on the team but his first name isn't 'Manny'.
2) There's a 'Manny' on the team but his last name is neither 'Ortiz' nor 'Ortez'.
From all indications, kerry's a total fraud when it comes to being a fan of major league baseball in general and the Red Sox in particular.
The one you mention NEVER having played for the Sox was his so called "favorite" player while growing up, Eddie Yost, who spent his PLAYING career with the Washington Senators, Detroit Tigers, and the first year Los Angeles Angels.
Yost has been a COACH and INTERIM MANAGER for the Red Sox, but never a player.
As I recall, he came up with "Mannie Ortiz" -- apparently conflating Mannie Ramirez and David Ortez (I hope I have the names right -- I'm not much of a sports fan, which is yet another reason I'll never run for president!); I did see in one FR posting that there is a big Kerry contributor named Mannie Ortiz, but I only saw it the once.