BOSTON -- The Red Sox didn't have their biggest bat in the lineup on Tuesday night.
They did just fine without him.
The Red Sox had a season-high 16 hits, and Jackie Bradley Jr. extended his major league-best hitting streak to 16 games as Boston won its third straight. Shaw tied his career high with five RBI.
"Every at-bat everybody comes with something," Ramirez said. "It's the whole team. ...What we're doing right now, we gotta keep doing it."
Adding to the impressive display was it all came when David Ortiz, who entered Tuesday leading Boston with a .321 average and nine home runs, had the night off.
The Athletics lost their fourth consecutive game.
First-inning home runs by Betts and Ramirez gave the Red Sox a 3-0 lead. Then the Red Sox followed that up with a five-run third inning to blow the game open.
Sean O'Sullivan (1-0) got the victory in his first start with the Red Sox after signing a minor league contract in December.
"It was nice. The guys go out there and put up a big lead for me. It was my job just to keep getting them back in the dugout and keep the bats going," O'Sullivan said.
Oakland's Sean Manaea (0-1) had his second straight rough outing, giving up 10 hits and eight runs in 2 2/3 innings.
The Red Sox won for the fifth time in seven games and have outscored the A's 27-12 in the first two games of the series.
O'Sullivan went six innings, giving up four runs and 12 hits, while striking out three.
In his past two starts, Manaea has allowed 12 runs and 17 hits.
"I felt like I was maybe getting inside but looking back on it I was pretty much throwing it down the middle," Manaea said. "It's just frustrating because I know I'm a lot better than this."
Boston got the scoring going early.
Betts led off the bottom of the first with his fifth homer of the season and Ramirez added a two-run shot later in the inning, his fourth of the year. Shaw added his fourth of the season in the fifth inning.
O'Sullivan was called up on Friday, taking the roster spot of Henry Owens, who was sent to Triple-A Pawtucket.
With big run support, O'Sullivan allowed seven hits through five innings, before giving up five hits and four runs in the sixth.
Athletics: IF/OF Mark Canha (back strain) and RHP Liam Hendriks (strained right triceps) are on the 15-day disabled list. The A's recalled RHP Andrew Triggs, LHP Daniel Coulombe from Triple-A Nashville and added IF Tyler Ladendorf to the active roster, which has been depleted by injuries.
Red Sox: LHP Eduardo Rodriguez (right knee) is scheduled to pitch his next rehab start for Triple-A Pawtucket on Friday. He is coming off his third rehab start on Saturday, in which he threw 93 pitches in 5 2/3 innings. Farrell said Rodriguez is making strides in both his mobility and stability on his knee.
O'Sullivan has been well-travelled, playing for four teams before getting picked up by Boston. He had his wife, children, father and sister in the stands to see him snap a nine-start winless streak. "Definitely a moment that I will have memory-banked," O'Sullivan said.
In addition to Canha and Hendriks moving to the DL Tuesday, Oakland also optioned RHP J.B. Wendelken to Triple-A Nashville, and recalled Triggs and Ladendorf. The Athletics also selected the contract of Coulombe from Nashville. To make room for Coulombe on the 40-man roster, right-handed pitcher Chris Bassitt was transferred to the 60-day DL. Triggs and Coulombe both played Tuesday.
Athletics: LHP Eric Surkamp (0-2, 5.59 ERA) will return from a stint at Triple-A Nashville for his first start for Oakland since April 24. The A's needed to shuffle their rotation after getting rained out in Baltimore on Friday and playing a doubleheader the next day.
Red Sox: RHP Rick Porcello (5-1, 2.95) is coming off his only loss of the season after the Yankees ended his 5-0 start last week in New York. In his past nine games against Oakland, he has allowed more than three earned runs only once, going 3-3 with a 3.12 ERA.
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- Home Plate Umpire - Larry Vanover
- First Base Umpire - Alfonso Marquez
- Second Base Umpire - Chris Guccione
- Third Base Umpire - David Rackley