SANTA CLARA, Calif. (AP) — A person with knowledge of the decision says quarterback Colin Kaepernick has been told he won’t start Sunday for the San Francisco 49ers, replaced by backup Blaine Gabbert.

The person spoke on condition of anonymity Monday night because the decision wasn’t to be discussed publicly. The team had not made a formal announcement, though coach Jim Tomsula said earlier in the day “we’re evaluating everyone,” on the heels of a 27-6 loss at St. Louis and a second straight game without a touchdown and third in four.

Kaepernick has been benched for his birthday, as he turns 28 on Tuesday.

Former first-round pick Gabbert completed 23 of 28 passes in the preseason — for an 82.1 completion percentage — for 203 yards, one touchdown and no interceptions and a 108.8 passer rating.

Bay Area Sports Guy first reported the change.

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