Subpar starting pitching matchup and bullpens on both sides.
The A's are hitting .259 against lefties this season which is .33 points better than their clip against righties
Over is 4-0 in the last four road starts for Dbacks starter Tommy Henry.
Over is 9-3-1 in Diamondbacks last 13 interleague games against a left-handed starter.
Over is 20-7-1 in Diamondbacks last 28 interleague road games.
Over is 19-7-1 in Athletics last 27 games against a left-handed starter.
2.5% play on over