The running back underwent an MRI on Monday. The team didn't make the results immediately available.
Jet coach Rex Ryan would not confirm the nature of Tomlinson's injury on Monday. Tomlinson suffered an MCL injury to his left knee in 2008. He was limited to just two plays in the 2008 AFC Championship Game because of the ailment.
"I think he's going to be OK, but I have not heard for sure, yet," Ryan said on Monday. "... I've heard from our trainers that he's going to be OK, so I'm certainly hopeful."
The Jets, who play on Thursday night against Denver Broncos, held a walk-through practice on Monday. A team spokesman said Tomlinson would not have practiced if the team conducted a full workout.
"I'm all right," Tomlinson said after the Jets' 37-16 loss on Sunday night. "I'll get some more tests done (Monday) and we'll go from there. My leg got hit low, and I grabbed my leg."
In a weird twist, Tomlinson was upended by wide receiver Julian Edelman. Because of injuries, the Patriots had to use Edelman as a nickel back.
After the game, Tomlinson left the locker room under his own power, but he was walking with a noticeable limp. Due to the Jets' quick turnaround, it will be tough for Tomlinson to be ready to take the field against the Broncos.
The future Hall of Famer no longer starts for the Jets, but he's a good third-down back. With his 16-yard reception in the fourth quarter, he moved into fifth place on the all-time list for yards from scrimmage (18,206). He surpassed Barry Sanders. In his limited role, Tomlinson has 25 catches for 312 yards and a touchdown. He also has rushed for 167 yards and a touchdown.
Rich Cimini covers the Jets for ESPNNewYork.com. Ian Begley is a regular contributor to ESPNNewYork.com.