A.J. Griffin held the Mariners to one run on four hits in 5 2/3 innings of Friday's 8-2 win. Griffin struck out four and walked two in improving to 7-1. Now the owner of a 2.71 ERA, 1.05 WHIP and 64/17 K/BB ratio through his first 79 2/3 major-league innings, Griffin is currently in line to take the ball in what could be Oakland's all-important regular season finale against the Rangers at home on Wednesday.