Updated

New York Jets wide receiver Santonio Holmes could be sidelined a few weeks after injuring his left foot during Sunday's game against San Francisco.

Jets head coach Rex Ryan on Monday said x-rays were negative, but didn't know how long Holmes would be out until MRI results are further evaluated.

"I'm not sure how many weeks he's going to be out, but we know that the x-rays were negative," said Ryan. "If it's muscle it could heal much quicker, if it's something else -- ligaments -- then it would take much longer, but it's good news that the x-ray was negative. Obviously, it looks doubtful for this week, but further than that, I'm not real sure."

The Jets will host the Houston Texans next Monday night.

Holmes was hurt during the fourth quarter of Sunday's 34-0 loss after making a short catch. He immediately fell to the ground without being contacted and let go of the ball, which 49ers cornerback Carlos Rogers promptly returned for a 51-yard touchdown that gave San Francisco a 24-0 lead.

The seventh-year veteran was unable to put any weight on his left leg and was carted off the field.

Holmes recorded four catches for 29 yards before exiting Sunday, one week after coming up with 147 yards on nine grabs in a 23-20 overtime win at Miami. He leads the Jets with 20 receptions for 272 yards with a touchdown.

Ryan also said the Jets have agreed to a contract with cornerback Aaron Berry, who was released by the Detroit Lions in July after a second arrest in the offseason. He will add depth to a secondary that lost superstar cornerback Darrelle Revis to an ACL injury last week.

The Jets had begun playing running back Joe McKnight in the secondary, but Ryan said McKnight will return to his role in the offensive backfield.