The 49ers have re-signed cornerback Dontae Johnson and wide receiver Jordan Matthews, the team announced Wednesday morning.

The 49ers expect to be without starter Richard Sherman for multiple games due to a strained right hamstring. 

Ahkello Witherspoon and Emmanuel Moseley are expected to be the 49ers’ starting cornerbacks as long as Sherman is out of action. Johnson provides depth in the 49ers’ defensive backfield, along with D.J. Reed.

Johnson, 28, was among the 49ers’ final cuts before the start of the regular season. He re-signed with the club on Oct. 3 and was waived on Nov. 11. Adam Caplan of Sirius-XM NFL Radio first reported the re-signing of Johnson.

Johnson (6-foot-2, 200 pounds) has appeared in 71 games in his NFL career with 22 starts. He played his first four NFL seasons with the 49ers from 2014 to ’17 after being selected in the fourth round of the 2014 draft.

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Matthews also was one of the team's final cuts before the regular season. He re-signed with the club on Oct. 3, but was then cut three weeks later. The six-year pro has 3,288 career receiving yards and 22 touchdowns. 

Center Weston Richburg also was placed on season-ending injured reserve. He tore his patellar tendon on Sunday against the Saints.