49ers and starting right tackle Colton McKivitz have reached agreement on a three-year, $45 million extension including $27 million guaranteed. McKivitz was in the last year of his deal, and he now is contractually tied to San Francisco through the 2028 season.

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49ers RB Christian McCaffrey, who was added to the injury report Thursday with a calf issue, will play today vs. the Seahawks. “He’s good to go,” said one source.

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49ers are listing RB Christian McCaffrey as limited at today’s practice due to a calf issue.

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Texans WR Christian Kirk has a strained hamstring that is expected to sideline him for at least Sunday’s opener vs. the Rams and possibly longer, per sources. One source estimated it to be a two-week injury for Kirk, but the Texans will be “cautious” with him.

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