The Mariners roughed up the Red Sox in Boston last night by a score of 8-4. The high scoring game comes as no surprise, as the Red Sox are the highest scoring team in the majors, and Seattle is the second highest scoring team in the AL. The two teams have trended OVER at a rate of 9-0-1 in their last 10 meetings at Fenway, and another slugfest seems likely Saturday.

Here are my keys to the game:

1. Pitching - The Mariners will send rookie right-hander Adrian Sampson to the mound, making his major league debut. He went 7-4 with a 3.25 ERA in 13 starts at Triple A this season. Rick Porcello will go for Boston, and he's 5-0 at Fenway so far this year. He's been far from perfect though, surrendering 16 runs and five home runs in his last four starts.

2. Batter vs. Pitcher - Prior to this season Robinson Cano had hit .355 in his previous 62 at bats at Fenway. He was 2-for-5 with a home run last night, and he's hitting .375 with a home run in 24 career at bats versus Porcello.

3. X-Factor - The over is 14-6-2 in the Red Sox last 22 home games.

Selection: This is a play on SEA@BOS to go OVER the total (10*)