WHAT TO WATCH

Diamondbacks slugger J.D. Martinez relishes the idea of playing in the energized atmosphere of the winner-take-all contest, but said the players can’t get too caught up in the scene. “It’s going to be awesome, it’s going to be fun,” he said. “But at the same time you have to control it. I think that’s going to be the hardest thing for everyone, both sides.”

GREINKE’S ARM:

Zack Greinke (17-7, 3.20 ERA) will be making his 10th career playoff start. His postseason record is 3-3 with a 3.55 ERA. He is 2-1 in five starts against Colorado with a 3.41 ERA in 34.1 innings. The Diamondbacks signed Greinke to a six-year, $206.5 million contract before the start of last season. This is just the situation where they expect him to earn some of that money. “I feel good going into it,” he said.

The Rockies counter with the 25-year-old Jon Gray (10-4, 3.67), who said “it’s very cool” to go against

YOUNG ROCKY:

Greinke. “The guy’s obviously got a great track record,” Gray said. “He’s been a really good pitcher for years. It’s very exciting for me. He’s a guy I used to watch on TV so it’s very, very surreal.”

POWER SURGE:

The Rockies bring a powerhouse lineup featuring NL batting champion Charlie Blackmon (.331, 37 home runs, 104 RBIs), Nolan Arenado (.309, 37 homers, 130 RBIs) and Carlos Gonzalez, whose bat came alive late in the season after an uncharacteristically tough year at the plate.