DENVER (AP) - Jonathan Sanchez's reunion with his former team wasn't a pleasant one for the left-hander.

Sanchez was hit hard early and didn't stick around for long and the San Francisco Giants routed the Colorado Rockies 16-4 on Friday.

Wilin Rosario homered for the Rockies, who have lost 9 of 11.

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``Very little good to say about tonight,' Rockies manager Jim Tracy said.

The Rockies pitching staff has struggled this year, but hoped to find a rhythm against a slumping San Francisco team.

The Giants were shut out twice and held to one run in two other games during their recent downslide, but broke out against Colorado. They had a season high in runs and matched their season best with 16 hits.

The 16 runs were the most allowed by the Rockies this season.

San Francisco wasted no time in getting on the board against Jonathan Sanchez (0-3). The first four batters reached as the Giants took a 2-0 lead on their former teammate.

Sanchez, who tossed a no-hitter for the Giants on July 10, 2009, lasted only three innings, walking three and throwing two wild pitches.

``I was in trouble in the first inning, threw a lot of pitches,' Sanchez said. ``The next two innings went quick. We have a pitch count here so I couldn't get deeper.'

Sanchez has struggled in three starts since coming to Colorado for Jeremy Guthrie on July 20. Friday's start was his shortest outing of his three games.

Tracy wouldn't discuss Sanchez's spot in the rotation.

``I won't talk about that tonight,' he said.

Brett Pill made it 3-0 when he hit a leadoff homer in the fourth off Adam Ottavino.

The Giants blew it open against Mike Ekstrom in the seventh. Ryan Vogelsong led off with a double and scored on Angel Pagan's double. Ryan Theriot walked and Melky Cabrera doubled down the left-field line to make it 6-0.

Cabrera scored on Marco Scutaro's groundout to make it 7-0.

Vogelsong (9-5) cruised early. He retired the first nine batters of the game and allowed one hit through six innings.

The Rockies broke through in the seventh. Dexter Fowler led off with a triple and scored on a sacrifice fly. Jordan Pacheco and Todd Helton hit consecutive doubles, and one out later Rosario hit his 18th homer down the left-field line to make it 7-4.

George Kontos relived Vogelsong and got the last two outs to end the inning.

``We did a very nice job with the four-run offensive inning,' Tracy said. ``Unfortunately we were down by seven at the time.'

Vogelsong allowed four runs and five hits, struck out seven and walked two in 6 1-3 innings.

``He was locating really well and the balls that we did hit were right at them,' shortstop Josh Rutledge said. ``Couldn't really do much about that, couldn't get guys on base.'

The Giants scored six times in the eighth - three on Posey's 15th homer and two on wild pitches by Matt Reynolds. They added three more in the ninth.

Notes: Fowler's triple was the 50th of his career, the most in club history. ... Rockies RF Michael Cuddyer (sore right oblique) was out of the starting lineup for the third straight game. He could start Saturday. ... Rockies RHP Jhoulys Chacin allowed four runs in four innings during a rehab start in Double-A. He will make another start in Double-A before another rehab start in Triple-A Colorado Springs. ... The Giants will send Madison Bumgarner (11-6) against Colorado's Jeff Francis (3-3) on Saturday.