The Rockies want the extra hitter for the Giants series and for a nine-game road trip to Atlanta, Philadelphia and Cleveland, so Martin (0-0, 4.15 ERA, 8 K, 2 BB in 8 2/3 innings) lost his spot. Nick Masset (1-0, 1.50 ERA) has given the team an experienced right-hander to help protect leads.
"Typically, when we're getting ready to go on the road, we'll go with 12 pitchers," Weiss said. "We had to make a move with 'Cuddy,' and that seemed like the thing to do. We'll go back to 13 at some point. Chris Martin is a big part of this club. He's pitched very well for our bullpen. He'll be back."
Cuddyer played first base instead of his usual right field Tuesday. Weiss went with a right-handed lineup against Giants lefty Madison Bumgarner, which gave him a chance to rest the left-handed-hitting Morneau. Weiss led off with Brandon Barnes (4-for-8 against Bumgarner) rather than lefty-hitting Charlie Blackmon (0-for-4, no at-bats this year). Drew Stubbs also started in the outfield, rather than Corey Dickerson.
But Weiss went with left-handed-hitting Carlos Gonzalez, but the numbers supported the choice -- .351 (13-for-37) with five home runs and nine RBIs against Bumgarner.
Thomas Harding is a reporter for MLB.com. Follow him on Twitter @harding_at_mlb. This story was not subject to the approval of Major League Baseball or its clubs.