2:29 PM - Jack Sanborn (Dal) (groin) was placed on the injured reserve list Monday.

5:55 PM - Jack Sanborn (Dal) (groin) did not participate in Thursday's practice, Jon Machota of The Athletic reports.

2:10 PM - Jack Sanborn (Dal) was added to the Cowboys' injury report due to a groin injury, and he has been ruled out for Sunday's game against the Broncos.

6:49 PM - Jack Sanborn (Dal) (concussion) does not have an injury designation heading into Sunday's game against the Commanders, Jon Machota of The Athletic reports.

7:46 PM - Jack Sanborn (Dal) (concussion) was a full participant at practice Thursday, Todd Archer of ESPN.com reports.

7:25 PM - Jack Sanborn (Dal) (concussion) practiced in a limited fashion Wednesday, Mike Garafolo of NFL Network reports.

6:53 PM - Jack Sanborn (Dal) (concussion) has been ruled out for Sunday's game against the Panthers, Clarence Hill Jr. of AllDLLS.com reports.

7:35 PM - Jack Sanborn (Dal) (concussion) did not participate in Wednesday's practice, Jon Machota of The Athletic reports.

2:56 PM - Jack Sanborn (Dal) has been diagnosed with a concussion and will not return Sunday against the Jets, Joe Hoyt of The Dallas Morning News reports.

2:10 PM - Jack Sanborn (Dal) is being evaluated for a concussion and is questionable to return to Sunday's game against the Jets, Calvin Watkins of The Dallas Morning News reports.

2:46 PM - Jack Sanborn (Dal) racked up 11 tackles (six solo) and one pass defended in Sunday's 40-40 overtime tie with the Packers.

6:56 PM - Jack Sanborn (Dal) finished Sunday's 31-14 loss to the Bears with seven tackles (three solo).

4:10 PM - Jack Sanborn (Dal) Cowboys signed Sanborn to a one-year deal Wednesday, Jeremy Fowler of ESPN.com reports.