Red Sox 6, Mariners 1

BOSTON - Red Sox left-hander Jon Lester recorded a complete-game victory, losing his shutout in the ninth inning as Boston beat the Seattle Mariners 6-1 on Monday.

Lester did not allow a hit until there were two outs in the fourth inning, when Ichiro Suzuki broke up Lester's bid for his second career no-hitter with a comebacker that bounced off Lester's glove for a single.

Lester ended up allowing one run on eight hits with no walks and six strikeouts. He improved his record to 2-3 with a 3.60 ERA.

Sox batters got to Mariners lefty Jason Vargas early, with two runs in the first inning. Dustin Pedroia walked with one out, and he scored on David Ortiz's double. Ortiz then scored on Adrian Gonzalez's double.

In the fourth inning, Daniel Nava's first-pitch, two-run homer scored Cody Ross, who had singled. It was the first home run of the season for Nava, who was called up from Triple-A Pawtucket on Thursday. It was also the first home run in 171 major league at-bats. Nava hit a grand slam on the first pitch he saw in the major leagues, on June 12, 2010. He then shuttled between Boston and Pawtucket in 2010, and spent all of 2011 and the start of 2012 in Pawtucket.

Kelly Shoppach's first home run of the season, a solo shot over the left field wall, gave the Sox a five-run lead.

Jason Vargas took the loss, falling to 4-3, with a 3.28 ERA. He went six innings, giving up five runs on seven hits and three walks with three strikeouts.

The Sox added another run in the eighth against Mariners reliever Sean Kelly when Marlon Byrd hit a bases-loaded sacrifice fly to score Will Middlebrooks.

The Mariners scored their lone run when Kyle Seager's groundout scored Suzuki, who singled and took third on Justin Smoak's double.

NOTES: With a home run and two RBI Sunday against the Indians, Red Sox third baseman Will Middlebrooks became the third player to accumulate at least four home runs and 13 RBI over his first 10 games in the majors...Dustin Ackley got a partial day off, serving as the designated hitter, with Kyle Seager playing second base...Mariners right-hander Blake Beavan is scheduled to start Tuesday, his first appearance since leaving his last game after three innings on May 7 against the Tigers after being hit on the right elbow by a shot off the bat of Miguel Cabrera that turned into an inning-ending double play. Beavan is 1-3 with a 4.32 ERA...Kevin Millwood induced three double-play grounders for the Mariners in their win over the Yankees on Sunday. It was the most double plays for Millwood since June 27, 2006, a span of 154 starts...Dustin Pedroia's 14-game hitting streak was snapped as he went 0-for-3 with a walk. It had been the longest active streak in the majors.