"We gave him permission to go home before that," said manager Terry Francona. "It's personal though. He's not going [to Japan] to have surgery. I talked to him probably two or three times in-depth."
Matsuzaka's appointment with Yocum will come before the end of May.
Matsuzaka was placed on the 15-day disabled list Tuesday with what Red Sox medical director Dr. Tom Gill diagnosed as a sprained ulnar collateral ligament in his elbow. The hope is that rest and rehab will help improve the ailment and that Matsuzaka will not need to undergo Tommy John surgery, a procedure which would take him off the mound for the remainder of this season and at least a large chunk of 2012.
Though one published report said that Matsuzaka wanted to get a second opinion from a Japanese doctor, that apparently was not the case.
Before going on the DL, Matsuzaka went 3-3 with a 5.30 ERA in eight starts. He initially felt discomfort in his elbow on April 29 during a start against the Mariners. The life on his fastball wasn't there in the two starts he made after that.