I'm not sold on Nathan Karns, nor Seattle opening a road favorite against Oakland.

Karns is coming off an impressive 11-1 victory home victory against the Astros this past Tuesday. But he's a bottom-of-the-rotation type starter with command issues having walked 11 batters in 17 1/3 innings. He is 0-2 lifetime versus the A's, too, with a 5.06 ERA.

I like Oakland starter Kendall Graveman more. Unlike Karns, Graveman is coming off a bad game last Monday against Detroit. Prior to that game, though, Graveman had surrendered just four runs in his last three starts. He also threw a six-inning shutout of Tampa Bay during his last start of 2015. Graveman is 1-0 with a 0.90 ERA in three lifetime appearances versus the Mariners.

The A's have won five of the past six games against the Mariners, including sweeping three games in Seattle from April 8-10.