ALAMEDA, Calif. (AP) – Randy Moss’ status for this week was undetermined Monday after sustaining bruised ribs, a strained groin and a bruised pelvic area in a hard fall while trying to make a leaping catch.

The Oakland Raiders’ most dangerous threat was in for only one play after the injury and missed the final three quarters of a 27-14 loss to the San Diego Chargers on Sunday.

“He’s very sore today,” coach Norv Turner said Monday. “It will be later in the week when we’ll see how quickly the soreness leaves.”

Turner said he would know more about Moss’ status after Wednesday’s practice when the team will decide how to list him in this week’s injury report for the game against Buffalo.

Turner wouldn’t speculate whether Moss would be able to play a game he described as a “must-win” contest for the Raiders (1-4).

“I wouldn’t even start to talk about it until later in the week and we’ll see where he’s at,” Turner said.

Moss was hurt late in the first quarter when Kerry Collins underthrew him on a deep pass. Moss leaped between two defenders before falling awkwardly to the ground, where he was kneed by a defender. Moss was attended to by trainers and limped off the field.

After sitting out three plays, Moss returned to the field for LaMont Jordan’s 4-yard touchdown run.

He then sat out the rest of the game. Trainers spent the first half stretching his legs on the sideline and Moss never returned to the field after halftime.

Without the threat of Moss and because they were playing from behind most of the game, the Raiders struggled on the ground with only 39 yards rushing. Collins also struggled most of the game, going 24-for-48 for 292 yards, but 131 of the yards came in the fourth quarter.

“Any team that loses one of their best players, it’s going to have an affect,” Turner said. “I’m certainly not going to sit here and say that was the issue in why we didn’t move the football. We had opportunities. We had breakdowns that kept us from moving the football.”

Moss had no catches in the game for just the third time in his career.

He had no receptions in consecutive weeks last October against Tennessee and the New York Giants when he was slowed by a hamstring injury.

Brought in from Minnesota to add a big-play element to Oakland’s offense, Moss has just 19 catches for 466 yards and two touchdowns through five games.

Despite adding Moss and Jordan in the offseason, the Raiders have yet to score more than 20 points in a game and is averaging just 18 points per contest – two points below last year’s total.