San Francisco 49ers head coach Chip Kelly has confirmed Colin Kaepernick will take over from Blaine Gabbert as the starting quarterback this week against the Buffalo Bills.
Speaking in a media conference on Tuesday, Kelly said: "We need to improve on the offensive side of the ball and this is the decision we've made."
The move was somewhat expected amid the intense scrutiny surrounding Gabbert's struggles.
Gabbert failed to reach even 200 passing yards in all but one game this season, and his poor performances have led to a 1-4 start for San Francisco.
Kaepernick and the 49ers are reported to have been in discussions over a restructure of the quarterback's contract to remove the injury guarantee.
That would allow San Francisco to play Kaepernick and not be on the hook for his $14.9million base salary next year if he suffers a serious enough injury to trigger the guarantee.
"It's a football decision," Kelly said when asked about the contract. "I don't even know where his contract status is."