Shields recently was picked by Rays manager Joe Maddon to start on opening day for the third straight year. The right-hander gave up one run and five hits.
"I liked Shields a lot," Maddon said. "He attacked the strike zone. Pitched primarily with his fastball but mixed some other things in. I like the fastball and his aggressive nature was very good."
"I was a little shaky at the start, a little off, a lot of three-ball counts," Shields said. "I got in a nice rhythm from the third on and I felt pretty good for the most part."
Boof Bonser was hit hard in his first start for the Red Sox, giving up five runs and six hits in two-plus innings.
"I thought pretty much overall our whole staff, when we were up, everything kind of got flat," Red Sox manager Terry Francona said. "And when [the Rays] got it in the air, a lot of balls left the ballpark, starting with Boof. When he came out he revealed a little bit his right groin was grabbing at him a little bit. So, we'll look at him tomorrow and see where that goes."
The Red Sox scored eight runs in the last three innings. Ray Chang hit a three-run homer in the seventh off Winston Abreu.
Boston RHP John Lackey started a minor league intrasquad game, going five innings and giving one run and three hits. He struck out seven. ... LHP Alan Embree, who recently signed a minor league contract, is scheduled to pitch in a minor league game for Boston on Wednesday. ... Rays C Dioner Navarro, out with a left shin nerve bruise, could be back before the end of the exhibition season.