• With Helton not feeling good, Weiss started callup Ryan Wheeler at first base Monday night. Wheeler hit .306 with 29 doubles, 12 home runs and 89 RBIs at Triple-A Colorado Springs. Weiss believes there is more in the bat of Wheeler, who arrived in a trade with the D-backs last winter.
"Wheeler has always hit," Weiss said. "The power is starting to come. He's a guy that's always hit for an average. He's an interesting guy, a big guy. The raw power is starting to show up in his batting practice and in his approach. That's in there."
• Rockies left-hander Drew Pomeranz (0-4, 8.10 ERA in four starts), who hasn't pitched since July 22 because of biceps tendinitis in his left arm, threw a bullpen session Monday at AT&T Park. Weiss said it's probably too late for Pomeranz to expect to start a game before season's end, but he could appear as a reliever if healthy enough.
Thomas Harding is a reporter for MLB.com. Read his blog, Hardball in the Rockies, and follow him on Twitter @harding_at_mlb. Chris Haft is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.