Lowrie complains of fatigue

FORT MYERS, Fla. -- Red Sox infielder Jed Lowrie has undergone medical tests after complaining of significant fatigue last week when the team was in Port St. Lucie, manager Terry Francona told reporters after Sunday’s game with the Twins.

Lowrie will undergo more testing Monday, Francona said, and at this time, according to a club source, there are no plans to send him to Boston for additional tests.

In other news around camp:

* Mike Lowell is scheduled to play first base on Monday “and we’ll go from there,’’ Francona said.

Lowell has been taking ground balls at first on the side with infield coach Tim Bogar. Sunday, he took ground balls at both third base and first.

“I’m playing tomorrow, and that’s good, I’m excited about that,’’ Lowell said. “But I’m going to refrain from all comments. I’d rather play a few games.’’

* Pitcher Daisuke Matsuzaka did not throw Sunday. He missed a scheduled session of BP with what he called stiffness in his neck. "I feel a little bit better than yesterday, but I discussed things with the coaches and trainers and the decision was to give it one more day,’’ Matsuzaka said in a statement issued by the team.

“Beyond tomorrow, we are going to see based on how I feel tomorrow."

* The Red Sox took a 3-1 lead in the chase for the Mayor's Cup, beating the Twins 6-4. Check out the highlights below.