The 49ers have been dealing with injury issues at wide receiver all summer and the list grew this week when Russell Gage sprained his MCL in practice.

The 49ers have added a slew of journeyman wide receivers to replace their remarkable injury-laden position room. Russell Gage was the latest to go down with a knee injury.

The latest wide receiver to go down is Russell Gage, who sprained his MCL during Wednesday's practice and will miss the next 7 to 10 days.

The 5-foot-11, 221-pound Martin had a big hit on Raiders receiver Shedrick Jackson and later blew up a swing pass, but it was a sack and a breakup of a deep pass to tight end Carter Runyon that especially showed his ability to read and attack.

Russell Gage will be back in San Francisco, at least to start the offseason, alongside a few other additions. The 49ers announced the signing of four players to reserve/future contracts on January 7.

Veteran wide receiver Russell Gage, who has been among the standouts on the 49ers’ practice field, came down with one of his many catches through the first six practices of training camp.