GLENDALE, Ariz. — Sometime around Christmas, Chicago White Sox General Manager Rick Hahn called his new catcher, Alex Avila, to ask about a player Hahn was interested in signing.
“Where are you?” Hahn asked.
“Oh, I’m with my folks,” Avila replied.
“All right,” Hahn said, laughing nervously. “Could you go into another room?”
Avila’s father, Al, is the general manager of the Detroit Tigers, a rival of the White Sox in the American League Central. From his major league debut in 2009, Avila had played only for the Tigers. Now, his loyalties are elsewhere.
“It’s been a family affair for six years,” Al Avila said in Florida last month, with a smile. “Now they’re going to go to Chicago. You’ve got family wearing Chicago White Sox…