Smith completed 15 of 19 passes for 149 yards and an interception before leaving in the third quarter of Sunday's loss to the Green Bay Packers with an apparent knee injury that was later diagnosed as 'structurally okay'.
But now the veteran quarterback reassured everyone that he's prepared to play against the Minnesota Vikings as the Seahawks are in the middle of a heated playoff race.
Smith was seen practising on Thursday with no setbacks.
He is third in the league in passing yards (3,623) and sixth in completion percentage (69.9).
The Seahawks now sit at a thought 8-6 record with three games left in a tight NFC playoff race. Their next two games after Minnesota include two road games against the Chicago Bears and Los Angeles Rams to wrap up the season.