The Nationals released Webster on Monday, Brittany Ghiroli of The Athletic reports.

Webster (arm) was outrighted to Triple-A Iowa on Monday.

Webster (arm) restarted his rehab assignment at Double-A Tennessee last week, making two appearances for the affiliate and giving up four runs on three hits and a walk over 1.2 innings.

Webster (arm) will continue his rehab assignment at Double-A Tennessee, Mark Gonzales of the Chicago Tribune reports.

Webster (arm) began a rehab assignment with the Cubs' rookie-league affiliate Wednesday, Mark Gonzales of the Chicago Tribune reports.

Webster (arm) was transferred to the 60-day injured list Friday.

Webster was placed on the 10-day injured list Saturday with radial nerve inflammation in his right arm, Jordan Bastian of MLB.com reports.

Webster retired the only batter he faced, earning his first save in Sunday's extra-inning win over the Diamondbacks.

Webster was called up to the Cubs on Saturday, Sahadev Sharma of The Athletic reports.

Webster was reassigned to minor-league camp on Tuesday, Mark Gonzales of the Chicago Tribune reports.