What caught our eye in the Colts’ 27-7 upset of the San Francisco 49ers Sunday at Candlestick Park:

Stellar 'D'
The 49ers are considered one of the NFL’s upper-crust teams. That includes a no-nonsense offense. On this particular afternoon the Colts defense owned ‘em. The 49ers had one great drive in the first quarter — 9 plays 91 yards — then nothing to speak of.

Coverage seldom gave Kaepernick options down field. The pass rush either kept him in the pocket of sacked him. LB Robert Mathis got to Kaepernick twice.

At game’s end the 49ers offense had 254 yards on 53 plays.

The Candlestick Park crowd was stunned. And silent.

Trent's workload?

In a word enormous. Traded for mid-week coordinator Pep Hamilton inserted RB Trent Richardson into the mix immediately. And heavily. Richardson seemed to be on the field more than starter Ahmad Bradshaw. Richardson’s first carry as a Colt was a 1-yard touchdown. By game’s end he had 35 yards on 13 attempts.

Hamilton promised to utilize all three of his RBs and was true to his word. Bradshaw had 95 yards on 19 carries and a late touchdown and Donald Brown 25 yards on 3 carries.

Read option?

The 49ers’ vaunted read open offense was neutralized by ... the 49ers. They seldom ran it. In fact with the Colts leading 13-7 late in the third quarter QB Colin Kaepernick had run it once. And LB Jerrell Freeman stayed home and tackled him for a 5-yard loss.

Overall the 49ers did damage with the running game but again it was limited. They finished with 115 yards on the ground but 78 came on their first-quarter scoring drive. It was impeccable work for a run defense that had allowed an average of 136 yards in the first two games 29th in the NFL. And it came with leading tackler/enforcer S LaRon Landry back in Indy with an ankle injury.