The most likely scenario is that fans see Nick Mullens leading the 49ers offense against the home-team Giants at MetLife Stadium.
Giants coach Joe Judge is familiar with Garoppolo. The coach was with the New England Patriots during the quarterback's time serving as Tom Brady's backup.
"One thing that stuck out to me about Jimmy early on was he never backed down from any competition," Judge told reporters on Wednesday. "He's a guy, it didn't matter what room he was in, who he was competing with, Jimmy was always trying to get on the field and make an impact.
"... I'd say there was a really high confidence level with Jimmy. He's a really good player. He's got a tremendous arm. He can make all the throws. He can beat you with his legs. He's very mobile.
"He's tough, man. He has those older brothers who would always show up at the game, the typical Midwest meathead family. They're always a lot of fun to have around. ... He was a guy, who when he stepped in the huddle, there was an immediate confidence around him.
"It's no surprise, the success he's had in San Francisco. I think a whole lot of Jimmy."
For now, Shanahan said the team is preparing as if Mullens will start. Anything is possible, though, so Judge isn't counting Garoppolo out just yet.
"As far as whether it's Jimmy or Mullens, to be honest with you, you have to have a little bit of a plan for both because what they may do is maybe a little bit dictated by who's at the game," Judge said. "These are conversations we're having with coaches, that we're putting a plan together for the players. You want to get it to them in basic increments that you're not double-installing everything all at once for the players."
Judge isn't as familiar with Mullens, who on Sunday will likely make just his ninth NFL start.
"On Mullens, one thing he does an extremely good job with is you can spread the field out with him," Judge said. "He gets the ball out of his hands extremely fast. He is a guy who kind of turns two, as we say. The ball hits his hand, the ball is coming out, and he's getting it to the receiver.
"He has very good anticipation, he does a good job pre-snap of reading the defense, knowing where his receivers are going to be, and he's a tough, gritty dude. He obviously had some success for them in the past when he has had to play."
More San Francisco 49ers News
-
49ers star Nick Bosa's contract ranked among NFL's worst
When healthy, San Francisco 49ers defensive end Nick Bosa remains one of the NFL's premier edge rushers. After a dominant 2022 campaign in which he led the league with 18.5 sacks, Bosa earned NFL Defensive Player of the Year honors and was rewarded with a five-year, $170... -
49ers rumors, fantasy, and clickbait: sorting reality from offseason noise
In the offseason, there is not as much to write about unless something unexpected occurs, such as the monster trade when the Cleveland Browns sent superstar defensive end Myles Garrett to the Los Angeles Rams. Much of what we read falls into the categories of speculation,... -
49ers training camp report dates and joint practice dates announced
The NFL has announced official training camp report dates for all 32 teams, and the San Francisco 49ers will begin preparations for the 2026 season when rookies report on Saturday, July 18. Veterans will join the newcomers one week later, reporting to training camp on... -
49ers QB weighs in on George Kittle's chances of a Week 1 return
San Francisco 49ers tight end George Kittle remains focused on returning for Week 1 after suffering an Achilles injury during last season's playoff victory over the Philadelphia Eagles. So far, the recovery appears to be progressing well. Kittle looked sharp during Tuesday's...