Source: Romo's collarbone still broken

IRVING, Texas -- X-rays on Tony Romo's broken left collarbone show that it's still fractured, and the
Cowboys starting quarterback remains at least three weeks away from returning, a source told ESPNDallas.com on Monday.

Romo underwent X-rays Monday morning to see how the injury to his non-throwing arm is healing.

Romo was injured on Oct. 25 in a loss to the New York Giants at Cowboys Stadium when he took a shot on his shoulder by blitzing linebacker Michael Boley.

Romo has been out about four weeks and doctors have told him it takes six to eight weeks for the collarbone to show any real healing. Romo isn't wearing a sling on a regular basis and he made some throws before Sunday's game vs. the Detroit Lions.

The Cowboys are hopeful Romo can return at some point in December, but until then Jon Kitna, 2-2 since replacing Romo, is the starter. Kitna has won his last two ballgames with an efficient brand of football. Against the Lions, Kitna threw for just 147 yards but had three touchdown passes and a quarterback rating of 129.7. The previous week, Kitna attempted just 22 passes but threw for 327 yards and three touchdowns in a road victory over the Giants.

Calvin Watkins covers the Cowboys for ESPNDallas.com.