Seattle @ Boston Game Overview

Boston will be seeking its seventh victory in eight games Wednesday in the middle contest of a three-game series against the visiting Seattle Mariners.

Triston Casas hit a three-run homer to highlight Boston's 8-3 victory on Tuesday in the series opener. The 25-year-old first baseman entered the game hitting .158 with a .229 on-base percentage, a .237 slugging percentage, one home run and four RBIs in 21 games.

Casas delivered the home run in the seventh inning against reliever Trent Thornton, extending the Red Sox's lead to 7-3.

"I hit the first (pitch) foul, and that typically means bad luck after that," Casas said. "I was able to get another pitch a little more in my zone and elevate it to a part of the field that I wanted to. It was a good swing. I'm gonna look to try and carry that into (Wednesday)."

Seattle, which is seeking its fifth straight series victory, went 1-for-8 with runners in scoring position during the loss.

Mariners right-hander Emerson Hancock (0-1, 12.71 ERA) is scheduled to make his third start of the season on Wednesday. It will be his first career appearance against the Red Sox.

Hancock was sent to Triple-A Tacoma one day after he failed to make it out of the first inning during his March 31 start against the Detroit Tigers. He was recalled on Thursday, and his start that day against the Cincinnati Reds was encouraging. Hancock gave up a two-run home run in the first inning, but didn't allow a run after that and struck out four in his five-inning outing.

"It was just a really good bounce-back for him," Seattle pitching coach Pete Woodworth said, according to MLB.com. "The Detroit start was tough because he threw the ball well and they hit -- the first three guys hit -- and then they got really lucky and, unfortunately, it happened very quick and he threw a bunch of pitches, so we had to move on. And then we had to make a (roster) move to provide coverage for the next series."

Sean Newcomb (0-2, 3.63 ERA) is listed as Boston's probable starter. The left-hander is 1-0 with a 0.00 ERA in two career appearances against the Mariners, both of which were in relief.

The home run Casas hit on Tuesday allowed Boston to keep the back end of its bullpen fresh entering the Wednesday matchup. Left-hander Aroldis Chapman has a team-high four saves, but righty Justin Slaten has retired the last 21 batters he has faced. Slaten picked up his third save by pitching a scoreless ninth inning during Boston's 4-2 victory over the Chicago White Sox on Monday.

Slaten's 4.00 ERA is a bit misleading since he allowed four runs without recording an out in Baltimore on March 31. In his other nine outings this year, he has allowed no runs, one hit and no walks.

"He's healthy," Boston manager Alex Cora said. "That's the most important thing. Last year, he was a little bit banged up and he wasn't honest with us. He wanted to keep grinding. We paid the price.

"Just keep him fresh. That's what we're trying to accomplish. Usage-wise, it's been solid with him, but also a lot of off days. If we continue to do that, those guys (Slaten and Chapman) are going to be pitching at 98-100 (mph), and that's bad news for the opposition."

--Field Level Media