Humphries Still Reeling

San Diego quarterback Stan Humphries said he is still showing symptoms of a concussion he suffered Nov. 2. His headaches are starting to go away, “but I’m having a lot of problems not sleeping,” Humphries said. Third-year pro Craig Whelihan replaced Humphries in Sunday’s loss to Seattle, and will make a second consecutive start against the visiting Oakland Raiders on Sunday night.

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The Indianapolis Colts signed 1992 Heisman Trophy winner Gino Torretta to bolster a quarterback corps that has lost a different starter to injuries three weeks in a row. Backup Paul Justin, who started after Jim Harbaugh was injured, dislocated a finger. Then Kelly Holcomb, who made his first NFL start last week in a 28-13 loss to Cincinnati, broke a bone in his left wrist as the Colts dropped to 0-10. Harbaugh and Justin plan to practice today, but their status is uncertain for Sunday’s game against Green Bay. . . . The Jacksonville Jaguars put defensive tackle Don Davey on injured reserve because of torn knee ligaments.