Rocky Colavito once said, "You can't tell how much spirit a team has until it starts losing."
The Padres finally started putting the pieces together in June, pushing themselves to .500 (40-40) and within 2 1/2 games of the first-place D-backs
They have since lost 10 in a row, fallen to 40-50 and are sitting 7 1/2 games back in the National League West entering play Tuesday.
It's time for the Padres to show some spirit.
"We have been taking a few on the chin," manager Bud Black said.
Their problems started on the mound. Over their last 12 games, the Padres are 1-11 with a 5.13 ERA.
In the comfort of Petco Park, Eric Stults has the chance to turn things around against the Rockies.
Over his last 12 starts since May 7, the lefty has gone 4-5 with a 3.10 ERA. He's been efficient with his pitch count all season. His ratio of 15.2 pitches per inning is 12th-best in the National League.
The Rockies, though, have dominated their NL West foes this season. Entering Tuesday, they're 9-2 against the Padres. But they could be without Carlos Gonzalez for a second straight game.
The All-Star has a sprained middle finger and is unsure when he might return.
"I know that I'm going to have a little soreness for a little while, but I want to get to the point where I can play through it," Gonzalez said. "I don't feel good enough to play, but I'm not waiting to feel 100 percent. I want to feel good enough to go out and play for my team."
The Rockies recalled outfielder Charlie Blackmon from Triple-A Colorado Springs Monday to add outfield depth.
On the mound for Colorado will be Jhoulys Chacin, the 25-year-old right-hander who has looked strong this season after an injury-plagued 2012.
While his strikeout numbers have been down, Chacin has posted a 3.74 ERA thanks to his ability to keep the ball in the park, having allowed just three homers in 101 innings.
"When he's got depth to his two-seamer and he's commanding that, he's really tough," said Rockies manager Walt Weiss.
Padres: Grandal done for the season
San Diego catcher Yasmani Grandal will need surgery to repair his anterior cruciate ligament and will miss the next nine to 12 months.
He was injured on a play at the plate Saturday when the Nationals' Anthony Rendon slid into Grandal's knee and he went down in obvious pain.
The Padres hadn't gotten much from their 24-year-old catcher, who played in just 28 games after serving a 50-game suspension for testing positive for performance-enhancing testosterone in November.
Rockies: CarGo, Cuddyer headed to Derby
Michael Cuddyer isn't anywhere near the National League lead in homers with 15 this season, but he received an invite to this year's Home Run Derby from his friend David Wright. Both of them hail from Norfolk, Va.
"I'm excited. I can't tell you how excited I am," Cuddyer said. "Being on the All-Star team is awesome and this is just icing on the cake for me. This is a once-in-a-lifetime opportunity. Right when David called me and asked me, I was champing at the bit."
Joining Cuddyer will be Gonzalez, who is leading the NL with 24 homers. He expects his finger to heal by next Monday when the Derby will take place.
• The Rockies haven't been nearly as dangerous against lefties this season. They have a .718 OPS against lefties and a .779 OPS against righties.
• Padres third baseman Chase Headley, who was recently switched back to third in the lineup while Carlos Quentin was moved down to fourth, is hitting 9-for-30 with three runs, four doubles, one home run and four RBIs in eight games in July.