Dallas Cowboys quarterback Tony Romo has a fractured left clavicle, the team announced just before halftime of Monday night's game against the New York Giants.

Romo was injured after completing a 14-yard pass to Miles Austin on a legal hit by Giants linebacker Michael Boley, who ran untouched into Romo and drove him shoulder-first into the Cowboys Stadium turf in the second quarter.

At the time, Romo was 5-of-7 for 39 yards and a touchdown. Romo wanted to return to the game, but was taken for X-rays that revealed the fracture.

No timetable for Romo's return was given, but he will likely miss at least six weeks, with it far more likely that Romo is done for the season. 38-year old Jon Kitna has replaced Romo tonight, and with Dallas on a short week, will likely be the starter next Sunday against the Jacksonville Jaguars.

Dallas led the Giants 10-7 when Romo left the game, but now trail the Giants 24-20 at halftime.