SANTA CLARA (CBS/AP) — Colin Kaepernick has been placed on season-ending injured reserve, possibly signaling an end to his time with the San Francisco 49ers.

Kaepernick began the week coming off the team’s bye with a shoulder issue he brought to the attention of the medical staff and received treatment, but was listed as a full participant in practice.

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He was listed as probable Friday to be available if needed Sunday against Seattle as the backup to promoted starter Blaine Gabbert.

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But after the team submitted the injury report, Kaepernick returned to the training staff Friday after practice and said the shoulder wasn’t making any progress and asked about his options. Surgery was a possibility.

The 28-year-old Kaepernick’s $11.9 million 2016 contract would become fully guaranteed for injury if he’s still on the roster on April 1.

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