NFL Pick ‘Em: It’s you against Smash Mouth Click here to make your 49ers-Cardinals & Raiders-Chargers predictions

SANTA CLARA — General manager John Lynch received “a great report” Thursday from the unnamed surgeon who performed Wednesday’s procedure on Jimmy Garoppolo’s left knee, which involved a torn anterior cruciate ligament and no other reported damage.

“He was very pleased with the way it went,” Lynch told KNBR 680-AM. “It’s one of those deals where it looked better – because sometimes you see some things on MRIs you don’t know – but it was a good repair and they’re very optimistic about his prognosis for the future.”

The 49ers have not said where or who performed the surgery. Garoppolo nor his agents have commented since the Sept. 23 injury in Kansas City. The star quarterback went on injured reserve last week and faces at least nine months of rehabilitation toward next season’s comeback. Related Articles 49ers on Wednesday: Garoppolo likely to miss game vs. Giants; a healthy 49ers RB has impressed

49ers bring in two former top-five picks to replace Nick Bosa, Solomon Thomas

The Deets: The 49ers’ big long-term challenge has arrived before anyone expected

No reinforcements: 49ers’ Dee Ford will miss at least another game, per report

Focus on New York Giants: Battered 49ers get another injury break

“I did talk to the surgeon (Thursday),” Lynch said. “You always hear from your trainer and medical people, but I wanted to hear it myself and I got a great report. I won’t go into details, although I can tell you I’ve never had a surgeon say, ‘It went real bad.’

“But I have had surgeons have concern after surgery. That wasn’t the case at all.”