Verrett, the Chargers' first-round draft pick, is expected to have surgery soon. He originally hurt his shoulder in a victory at Oakland on Oct. 12 - which he sealed with a last-minute interception - and aggravated it in a 35-21 loss at Denver three weeks ago.
Ingram was activated from injured reserve-designated to return. He'd been out since Sept. 20 with a hip injury.
The Chargers (5-4), losers of three straight games, host winless Oakland (0-9) on Sunday.
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