Romo, who broke his clavicle against the Carolina Panthers on Nov. 26, was left on the Cowboys’ active roster, despite his injury.
Earlier this month, Jason La Canfora of CBS Sports reported that the Cowboys planned to avoid placing Romo on IR to ensure he would be available for the playoffs. With Dallas’ loss to the New York Jets on Saturday, however, the team was officially eliminated from postseason contention, which prompted the decision to relegate Romo to IR.
Romo missed seven games at the beginning of the 2015 season after breaking his collarbone in Week 2. He sustained a hairline fracture over the location of the original break in Week 12 against the Panthers.
Along with Romo, Cowboys tight end Gavin Escobar will also be sent to IR, as he has a torn Achilles tendon.
The Cowboys are currently in last place in the NFC East with a 4–10 record. They go on the road to face the Buffalo Bills in Week 16.