Connor Colby Is Giving 49ers Fans Early Relief At Left Guard

Through a strong start, Connor Colby is proving to be the right fit for the 49ers left guard position, showcasing solid pass protection that could be key to their offensive success this season.

The 49ers walked into the season with one of their biggest unknowns sitting right in the middle of the offensive line: left guard. For months, there was no clear answer, so San Francisco opened the spot to a competition between Connor Colby, Robert Jones and rookie Carver Willis.

The job went to Colby, and the first two games have offered a pretty solid early read on that decision.

Against the Los Angeles Rams and the Miami Dolphins, Colby has handled 61 pass-blocking opportunities and given up just two pressures with no sacks. He’s also posted a 98.4 pass-blocking efficiency and has avoided penalties entirely.

That protection work has stood out in the numbers. Pro Football Focus has Colby at a 72.6 pass-blocking grade, which ranks 14th out of 62, while his 61.8 run-blocking grade sits 26th. In other words, he’s been more dependable keeping Brock Purdy upright than creating push in the run game.

That’s not nothing for a unit trying to keep things on schedule. Purdy has already benefited from that stability, including in Week 2 against the Dolphins, when he was the 49ers’ leading rusher and went 20 for 22 in one of the better outings he’s had in red and gold.

Still, Colby’s early work comes with a clear ceiling. The run-blocking grade points to a player who has room to grow, especially if he can become more consistent at moving defenders off the line while holding onto the pass protection he’s shown so far. That kind of development would matter for Christian McCaffrey and Kaelon Black, both of whom need space to stay explosive.

There’s also the matter of who San Francisco has coming up. Colby didn’t have a great game against the Rams in Week 1, and the schedule won’t get easier with the Seattle Seahawks twice, a non-jet-lagged Rams team, the Kansas City Chiefs and the Philadelphia Eagles ahead.

He’s still only in his sophomore year, which matters here. The 49ers are looking at a young lineman who is still developing, and that makes the early signs more encouraging than definitive.

Right now, the takeaway is simple: Colby has shown he can hold up in pass protection, and that’s a good start. But for a Shanahan offensive line, “good start” only goes so far. It has to be better than decent, and it has to help Purdy play to his strengths.

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