Making his first start with the Red Sox and first start since July 31, 2011, while with the Dodgers, right-hander Rubby De La Rosa delivered a dominant performance Saturday night at Fenway Park, as the Sox pummeled the Rays, 7-1.

De La Rosa, who was added to the roster just before the game, went seven shutout innings, allowing just four hits with no walks and eight strikeouts.

He struck out Rays lead-off batter David DeJesus, looking at fastball, and had at least one strikeout in every inning but the seventh, when he got Desmond Jennings to ground into an inning-ending double play.

De La Rosa earned the win, his first since July 25, 2011, while with the Dodgers against the Rockies.

Jake Odorizzi took the loss, giving up five runs in 3 1/3 innings, on six hits and a walk with six strikeouts. He falls to 2-5 with a 5.13 ERA.

The bottom of the Sox lineup – Grady Sizemore, Jackie Bradley, and Jonathan Herrera -- went a combined 6-for-12 with five runs scored, three RBI, a home run, and two strikeouts.

The Sox scored three runs in the third. Brock Holt’s first major league home run, scoring Herrera who led off with a single, would be all the runs the Sox would need. They added a run when Mike Carp’s sacrifice fly scored Xander Bogaerts, who walked, went to second on A.J. Pierzynski’s single, and took third on a wild pitch.

They added two in the fourth when Sizemore led off with a single, stole second, took third on Bradley’s groundout and scored on Herrera’s bunt single, ending Odorizzi’s outing. With Cesar Ramos on the mound, Herrera, who took second on a wild pitch and scored on Pierzynksi’s single.