Monday night’s feature presentation: “A Nightmare on Blake Street.”

Rockies left-hander Jorge De La Rosa, the most successful starting pitcher in Coors Field history, departed after just two innings after being mauled for nine runs.

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Other gruesome details of the Rockies’ 14-3 loss to the San Diego Padres included:

• After a 7-2 start, Colorado has lost four consecutive games, and fell to 1-3 at home.

• Third baseman Nolan Arenado was scratched before the game because of a sore left wrist. He is listed as day to day and said late Monday night that he hopes to play in Tuesday’s game.

• Slugging left fielder Corey Dickerson departed the game after his at-bat in the third inning because he has plantar fasciitis in his left heel. Manager Walt Weiss described the condition as “mild,” but it can become a troublesome injury for a professional athlete.

• Gold Glove shortstop Troy Tulowitzki watched a leadoff groundball by Wil Myers go through his legs in the second inning, the first trickle in the Padres’ four-run inning.

De La Rosa, making his 2015 debut after rehabbing a strained left groin suffered in spring training, was ambushed from the get-go by an aggressive Padres lineup.

“I was too excited and I was overthrowing,” De La Rosa explained.

Beginning with a leadoff single by Myers, the Padres pounded out five runs on six hits in the first inning, including RBI doubles by Matt Kemp and Jedd Gyorko. Kemp, a former Dodgers outfielder, went 3-for-4 with four RBIs, boosting his average to .368.

Weiss said De La Rosa’s groin was fine and said De La Rosa’s two rehab starts at Triple-A Albuquerque were enough to prepare him for Monday’s start.

“He was ready,” Weiss said. “He was almost too strong if there is such a thing. His velocity was up and his pitches were up, too. It looked like everything was elevated — his fastball and changeup. But he was plenty ready.”

Weiss figured San Diego’s fast start threw De La Rosa off his game.

“He got ambushed there and it made it tougher to find a rhythm, especially after being out so long,” Weiss said.

De La Rosa entered the game with a 45-14 career record and 4.00 ERA at Coors Field. Last year, he went 10-2 with a 3.08 ERA in 15 starts in LoDo. But Mr. Hyde showed Monday night. He gave up nine runs (seven earned) on nine hits.

Before the game, Weiss said he was not concerned that Rockies starters were not pitching deep into games, and he expressed confidence that De La Rosa would be the team’s workhorse. The lefty might well turn out to be, but he was terrible Monday night.

His two innings pitched marked the shortest start of his career at Coors Field and his shortest start overall since Sept. 10, 2013, at San Francisco, where he got the hook after two innings.

PHOTOS: Colorado Rockies vs. San Diego Padres, April 20, 2015

De La Rosa’s previous shortest start at Coors Field was 2 innings, the last coming May 24, 2011, vs. Arizona. He left that game with elbow soreness that would lead to Tommy John surgery.

Monday, relievers Christian Friedrich and LaTroy Hawkins were given the unenviable task of mopping up on a cold, dreary night. Neither fared well. Friedrich gave up three runs in 2 innings and Hawkins gave up a two-run homer to Will Venable. Right fielder Carlos Gonzalez appeared to have a chance to make the catch, but the ball flew by his glove, bounced off the top of the wall and into the Colorado bullpen.

The Rockies managed to scrape out two runs against San Diego starter Odrisamer Despaigne in the second inning on RBI singles by Justin Morneau and Rafael Ynoa. But, overall, the Rockies’ offense was lackluster, producing few fireworks on nine hits. That after getting blanked 7-0 at Los Angeles on Sunday when the Rockies managed just four hits against the Dodgers.

Patrick Saunders: psaunders@denverpost.com or twitter.com/psaundersdp