SANTA CLARA, Calif. -- Alex Smith's sprained middle finger shouldn't be a problem when the San Francisco 49ers host the New York Giants on Sunday in the anticipated rematch of last season's NFC Championship Game.
Smith made some throws both Tuesday and Wednesday to test his sprained middle finger, and said he expects it to keep healing as the week goes on and he uses it more.
"It's doing fine," Smith said Wednesday, according to the Sacramento Bee. "The more you move it around, keep it going, it'll get better as the week goes on."
Smith said he might wear some tape "for support" on the finger for Sunday's game.
Coach Jim Harbaugh, who earlier in the week said Smith's finger injury was "very much a concern," seemed to take his quarterback at his word Wednesday.
"He says he's doing good, that it's not a big deal," Harbaugh said, according to the San Jose Mercury News.
Smith owns the NFL's No. 1 passer rating (108.7) and is coming off his best game statistically: San Francisco (4-1) piled up 621 yards against Buffalo and became the first team in league history with 300 yards passing and 300 yards rushing in the same game.
Smith had no idea until after the game just how prolific San Francisco's single-game performance had been. He completed 18 of 24 passes for 303 yards and three touchdowns on his way to a remarkable 156.2 quarterback rating.
"I felt like a lot of us were pretty frustrated just by the self-inflicted mistakes -- the penalties and the yards we lost in the first half," Smith said. "Obviously, there after the third quarter, a pretty successful third quarter, second half. Then when someone told me early in the fourth quarter, I guess it made sense, thinking back, yeah, we had been pretty productive and had done some good things. But no idea it was record-setting."
In addition, with Frank Gore running for 106 yards and Michael Crabtree (113) and Vernon Davis (106) each having more than 100 yards receiving, it was the first time since 1951 that the Niners had a 300-yard passer, 100-yard rusher and a pair of 100-yard receivers in the same game.
Since their 24-13 Week 3 loss at Minnesota on Sept. 23, the 49ers have combined to outscore the New York Jets and Bills 79-3.
"It's very important for the offense to carry the team this week," Davis said. "Last year we didn't do what we were supposed to."
Davis is one of many San Francisco players who says he's still bitter about the 20-17 overtime loss to the Giants in January in the NFC Championship Game at Candlestick.
For years, Davis has been among Smith's biggest supporters, always confident he would emerge among the NFL's top quarterbacks.
"I've always thought Alex was a warrior," Davis said. "Alex's confidence level is rising."
Information from The Associated Press was used in this report.