Red Sox Series Preview: @ Seattle Mariners

May 13, 2015; Oakland, CA, USA; Boston Red Sox outfielders left fielder

(13), center fielder

(50) and right fielder

Jr. (25) touch their hats after a win against the Oakland Athletics at O.co Coliseum. The Boston Red Sox defeated the Oakland Athletics 2-0. Mandatory Credit: Kelley L Cox-USA TODAY Sports

Red Sox Key Players To Watch:

•  In the last seven games, second baseman Dustin Pedroia has been the red-hot bat for Boston, with a .364 batting average and 3 RBIs. With an on-base percentage of .440, Pedroia is doing the job of setting the table, but the heart of the order will need to sit down to feast more often for the Red Sox to win against this Mariners pitching staff. Pedroia has only crossed the plate twice in this span.

• Third baseman Pablo Sandoval has 2 home runs and 3 RBIs in the last seven games. He has not been as hot as Pedroia with earning hits (.217), but at least his power has helped contribute to runs.

• Center fielder Mookie Betts may not have exceptional numbers for batting average, but his 5 home runs and 20 RBIs for the season have been big, especially at the end of games. His amazing defense is on display daily, while his leadoff position in the batting lineup could use less strikeouts and more walks. Either way, look for Betts to, once again, make an impact in this series, with the bat or the glove.