SAN DIEGO (AP) - The San Diego Chargers have a long list of injuries heading into Sunday's home game against Baltimore.

The wobbly Chargers (4-6) are in dire need of a victory to keep their slim playoff hopes alive after losing two straight games and five of six.

If they are going to upset the powerful Ravens (8-2) they'll likely need a boost from some backups, particularly on the left side of the offensive line.

Left tackle Jared Gaither (groin) didn't practice Wednesday and his track record suggests he's a long shot to heal in time to face the team that drafted him. If Gaither can't go, the task of helping stop the Ravens' versatile pass rush falls on undrafted rookie Michael Harris.

Left guard Tyronne Green, another key member of the Chargers' offensive line, didn't work either, sidelined by a hamstring injury. If Green can't play, veteran left guard Rex Hadnot would get his first start of the season.