IRVING, Texas (AP) -- Tony Romo isn't sure how to define young.
The Dallas quarterback just knows he feels more like a 30-year-old than someone on the downhill side of 40 coming off a twice-broken left collarbone and now a couple of years removed from a pair of back surgeries that weren't far apart.
Plus, his teammates like to kid him about the whole age thing with Cowboys owner Jerry Jones on the record he thinks Romo has four or five more good years in him.
''With the way that it's going right now, the running joke is that I'm the only one in here getting younger each year,'' Romo said Wednesday, the second day of offseason practice.