SANTA CLARA – Quarterback Colin Kaepernick said he will conduct all of his rehabilitation work at the 49ers’ training headquarters.

Kaepernick and his father, Rick Kaepernick, spoke briefly with on Thursday afternoon as they entered Levi’s Stadium. Kaepernick stopped to autograph a fan’s football.

Kaepernick underwent surgery on Nov. 24 to repair a torn labrum in his non-throwing shoulder.

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He said the early stage of his recovery is going well and he is in good spirits. Kaepernick’s left arm was immobilized in a black sling. Doctors have cautioned him about being too active too soon, he said. His father drove him to the team’s facility on Thursday.

Dr. Peter Millet of the Steadman Clinic in Vail, Colorado, performed the surgery on the labrum tear, which a source described as “significant.” Kaepernick, who remains under contract to the 49ers, said he will rehab at the team’s facility and will also attend meetings in the final weeks of the regular season.

Kaepernick is expected to undergo a rehabilitation of period of four to six months.