CHARGER UPDATE : NOTEBOOK / T.J. SIMERS : Harmon Gives Recent Change in Weather a Chilly Reception

Ronnie Harmon played football in Buffalo, but now that he’s in San Diego, he has news for you: “It gets cold in San Diego.”

Harmon said Thursday’s weather change left him unable to bend his knee. He was unable to practice much Thursday. If the Chargers had to play right now Harmon would not have been able to participate, Coach Dan Henning said.

“It didn’t come from an injury, it didn’t come from a hit,” Henning said. “It just happened.”

Harmon, who downplayed his inactivity, expects to play Sunday against the Saints. Henning said wide receiver Anthony Miller still is bothered by a sore leg.

The Chargers have upgraded the injury status of linebacker Junior Seau from questionable to probable. Seau has been bothered by a groin pull.