The Arizona Diamondbacks had won four straight with a total of 26 runs scored before coming up short in a 5-3 loss to the St. Louis Cardinals in the opener of a four-game set Monday night. The Cardinals have scored 15 runs over their last two games and I think we'll see plenty of action over the plate from both sides tonight.

Here are my keys to the game:

1. Pitching - The D'backs hand the ball to Robbie Ray (3-9, 3.38) who had his scheduled start Monday pushed back a day to give him some extra rest. Ray last outing was on August 19 when he conceded three runs on seven hits in six innings of a 4-1 loss to the Pirates. He's surrendered three runs or more in each of his last four starts with one coming home at Arizona where he's 0-4 with a 4.45 ERA on the season. The Cardinals will counter with Jaime Garcia (5-4, 1.79 ERA) who's having an impressive season, but he conceded three runs on seven hits in 6 1/3 innings his most recent start. He allowed a season-high four runs (three earned) on eight hits in six innings against the D'backs back in May.

2. Arizona's Bats - The hosts have averaged six runs per game over their last seven games with a .285 batting average, reaching the seats 10 times over that span. A.J. Pollock has been swinging an extremely hot bat and was named NL Player of the Week on Monday after going 12-for-29 August 17-23.

3. X-Factor - 23 of Garcia's last 34 road starts (68%) with the total set in the 7.0-8.5 span have gone over the total.

Selection: This is a play on STL@ARI to go over the total (10*)