I'm playing on COLORADO. Arizona took yesterday's game but I expect the Rockies to bounce back today. Gray has allowed four or fewer earned runs in nine straight starts vs. Arizona. He's faced the Dbax at home twice the past two seasons. The Rockies won both. Gray has a very respectable 3.90 ERA here. Gray was done in by some bad defense last time out; he's still a solid 7-4 with a 3.65 ERA since late May. Gallen's Arizona debut went well. However, this is his first start at Coors and that figures to be a much tougher challenge. Rockies roll.