SAN DIEGO, Jan. 18 (UPI) -- San Diego quarterback Philip Rivers' status is uncertain as the Chargers prepare for their Sunday AFC Championship game against New England.
Rivers' knee injuries are more serious than originally described, The San Diego Union-Tribune reported Friday.
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The quarterback is listed as doubtful, the newspaper said.
Rivers was reported to have a right-knee sprain. The newspaper said it learned from sources that a torn ligament also was found.
The quarterback was on the practice field for the first time this week Friday, wearing a brace on the knee.
"It'll be day-to-day," General Manager A.J. Smith said.
Chargers tight end Antonio Gates is also listed as doubtful for Sunday. Gates has a dislocated toe.
