The Seattle Mariners roll into Nationals Park tonight sitting at 37-34, looking to take something from the Washington Nationals who are right at .500 at 35-35 — two middling clubs that could each use a series win to separate themselves from the pack. Washington is a slight home favorite at -112, with the over/under sitting at 9, which tells you oddsmakers expect some runs to cross the plate tonight.

Both bullpens have been stretched thin lately, so whoever's starter goes deep into the game is going to have a real edge — if the pen gets overworked by the sixth, this one could turn into a slugfest. Bold call: the Mariners heart of the order gets into a Washington reliever in the late innings and somebody leaves the yard for a go-ahead shot.