What a pain in the neck. The 35-year-old Cowboys quarterback is likely done for the season after reinjuring his left collarbone. During yesterday’s 33-14 trouncing by the Carolina Panthers, Romo — in only his second game back after missing seven weeks — was sacked on a routine play. He landed on the same collarbone he’d broken twice before, instantly grimacing with pain. Romo will be evaluated today, but with Dallas struggling at 3-8, sources say it’s unlikely he’ll return for what would be a largely symbolic effort.