The 49ers released kicker Matt Gay and quarterback Adrian Martinez from the practice squad on Tuesday, the team announced.

Regular kicker Eddy Pineiro is ready to return from a Grade 1 right hamstring strain. He has not played since a Nov. 16 game against the Cardinals.

Gay kicked for the 49ers in the past two games, making all four field-goal attempts and all four PATs.

Martinez was sent on his way after the 49ers opened the 21-day practice window for rookie quarterback Kurtis Rourke this week. Rourke is on the non-football injury list after injuring his knee in his final season at Indiana.

The 49ers signed wide receiver Javon Baker in a corresponding move. He spent time on the Eagles’ practice squad this season after the Patriots waived him out of the preseason.

Baker, a fourth-roun

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