SANTA CLARA Christian Wilkins Jersey , Calif. (AP) — will miss the rest of the season with a high ankle sprain he suffered Sunday.The 49ers placed Colbert on injured reserve Monday and signed quarterback Tom Savage to a one-year contract to take his roster spot.Coach Kyle Shanahan estimated Colbert would be sidelined for six to eight weeks. He would be eligible to come off IR for the 49ers’ second-to-last game, at home against the Chicago Bears on Dec. 23.But Shanahan talked as if Colbert, a second-year player out of Miami, will be shut down for the season. Rookie D.J. Reed will get the first opportunity to start at free safety in his absence.“It’s tough. It’s part of football, though,” Shanahan said. “It’s not the first time that’s happened. Colbert is one of those guys who got his opportunity last year because a lot of guys went down.”The 28-year-old Savage, who made nine starts over three seasons with the Houston Texans, originally signed with San Francisco last Tuesday. He was waived Saturday when the 49ers promoted defensive back Tyvis Powell from the practice squad for Sunday’s game against the Rams because of injuries in the secondary.But Savage was quickly re-signed to provide San Francisco with a third quarterback alongside starter C.J. Beathard and backup Nick Mullens. The 49ers lost Jimmy Garoppolo in Week 3 to a torn ACL.Shanahan remained firmly committed to Beathard on Monday despite a shaky performance in Sunday’s 39-10 loss to the Rams.Beathard threw two interceptions and lost a fumble Michael Deiter Jersey , giving him seven interceptions and three lost fumbles in five games (four starts). San Francisco (1-6) is winless since Beathard took over for Garoppolo.“We’ve had 18 turnovers this year,” Shanahan said. “I’ve watched every single one, definitely more than once. I recommend you guys (the media) do it too. You guys will see there’s a lot of people involved in each one.”The 49ers have an NFL-worst minus-15 turnover ratio, and the offense is only half the problem. San Francisco has forced just three turnovers — one interception and two fumbles — in seven games.Colbert is one of a few second-year defensive players — linebacker Reuben Foster and cornerback Ahkello Witherspoon are others — who haven’t made the impact that was anticipated after their promising rookie seasons.Addressing his group of second-year defenders as a whole, Shanahan said: “Those guys worked extremely hard in the offseason. They came in ready to take it to another level and they haven’t done that so far. That stuff’s hard.”Shanahan praised Colbert, however, saying the free safety was enjoying a strong game Sunday before hurting his ankle while trying to intercept interception on a deep pass in the third quarter.NOTES: Running back Matt Breida is day-to-day after tweaking his left ankle Sunday, but “his strength is good Daniel Jones Jersey ,” Shanahan said. … Receivers Marquise Goodwin (ankle) and Pierre Garcon (knee) and strong safety Jaquiski Tartt (stinger) will be evaluated Wednesday. … Foster (shoulder) is expected to practice Wednesday. SANTA CLARA, Calif. (AP) — Jimmy Garoppolo has resumed throwing and taking drop backs as he rehabilitates from a major knee injury that derailed his first full season as San Francisco’s starting quarterback.The process of coming back is going smoothly and Garoppolo hopes to be able to take part in seven-on-seven drills when the 49ers begin OTAs next month and be fully cleared by the time training camp starts in late July.Once the season begins Sept. 8 in the opener at Tampa Bay, Garoppolo believes the only difference will be the brace he will wear on his surgically repaired left knee.“I wore one initially as a rookie,” he said. “Then, I kind of got away from it. I think this year it’s a certainty. But, we’ll see how it goes down the road.”Garoppolo said he doesn’t believe the brace will impact his mobility a bit since the new ones are so lightweight that it’s almost “like you’re not wearing anything sometimes.”The 49ers are counting on Garoppolo being back to the player he was when they acquired him during the 2017 season from New England and he won his first five starts with the team to end that season.He was rewarded with a five-year, $137.5 million contract that offseason to be San Francisco’s franchise quarterback only to go down with the season-ending ACL injury in a Week 3 loss at Kansas City last season.“I think initially probably was the hardest part, the acceptance of everything Dexter Lawrence Jersey ,” he said. “The first couple weeks, really, you can’t put any weight on it with the meniscus and all that stuff. Probably the first month or two was the worst. But, after that, you get running and everything and you start to feel like yourself again.”Garoppolo was helped in his rehab by the fact that running back Jerick McKinnon tore his ACL earlier in September and was a good guide and partner during the process that has continued throughout the offseason.Garoppolo said it took some time to get the trust back in his knee, but now feels comfortable running and throwing the ball.“It’s encouraging,” he said. “Every day gets easier and easier. Able to make this throw better than I was a week ago. It’s small victories like that. Throughout the whole process, it’s all about small victories because you’re not going to jump out and be able to throw it 60 Deandre Baker Jersey , 70 yards again. Small victories.”Having a healthy Garoppolo and McKinnon will be key this season for the 49ers, who are coming off a 4-12 season in coach Kyle Shanahan’s second year with the team.Shanahan let the players know as they gathered this week for the start of the offseason program that improvement is necessary.“His big thing was the past couple of years we really needed to get the culture and everything,” defensive lineman DeForest Buckner said. “He feels like the culture is here and we have the talent. Now we have to go out and execute. We had setbacks on the way, especially last year. We had big expectations for the team and we didn’t achieve those expectations and those goals.”Buckner was one of the few bright spots for the Niners last season with a career-high 12 sacks. The seventh overall pick in the 2016 draft proved he was a foundation piece for the 49ers.Now the team will have to start planning on how to keep Buckner. He is eligible for a contract extension this summer if the 49ers want to lock him up long term before he can become a free agent following the 2020 season.“We had conversations here and there,” Buckner said. “It’s very early. Just because I’m eligible for a new contract going into my fourth year, it’s still very early in the process.”