SANTA CLARA — San Francisco 49ers All-Pro running back Christian McCaffrey has looked good in his first week back at practice after being sidelined by Achilles tendinitis and is on track to make his season debut Sunday against Tampa Bay.

McCaffrey returned to practice on Monday and has made it through three days of work on the field without any setbacks, leading coach Kyle Shanahan to say he expects his star back to play.

“He’s been awesome these last two days,” Shanahan told radio station KNBR on Thursday. “You never know (about) a setback or anything, but these two days have been great, and I expect to see him out there.”

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Dealing with Achilles Tendinitis

McCaffrey has been dealing with Achilles tendinitis since early August. He missed almost all of training camp before returning to practice just before the season opener. He was scratched at the last minute before that game against the New York Jets on Sept. 9 and then had a setback at practice Sept. 12.

He was placed on injured reserve two days later and spent the past seven weeks resting and rehabilitating, including a trip to Germany for treatment.

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49ers Counting on McCaffrey’s Return

The 49ers (4-4) are counting on McCaffrey’s return for a second-half boost. San Francisco has sputtered in the first half of the season with the offense scoring 3.9 fewer points per game than last season.

“It’s been awesome,” quarterback Brock Purdy said of getting McCaffrey back. “Just what he brings to the table and really just firing everybody else up around. All of us coming off the bye week and feeling good and fresh and then you get (him) next to you in the backfield, it’s been awesome. Looks great moving around and he’s trending in the right direction. So, we’re excited to see what happens.”

Jordan Mason has done a good job filling in for McCaffrey with 685 yards rushing in eight games, but the Niners have sorely missed the reigning AP Offensive Player of the Year in the red zone and in the passing game.

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McCaffrey’s Impact on the 49ers

McCaffrey led the NFL last season with 2,023 yards from scrimmage and was tied for the league lead with 21 touchdowns as he helped lead San Francisco to the Super Bowl.

After missing 23 games because of injuries in his final two full seasons with Carolina, McCaffrey had been healthy the past two seasons.

He missed only one game combined in 2022-23 — a meaningless Week 18 game last season for San Francisco when he had a sore calf. His 798 combined touches from scrimmage in the regular season and playoffs were the third most for any player in a two-year span in the past 10 years.