Sanchez is retiring from the NFL, Andrew Marchand of the NY Post reports.
Sanchez completed 19 of 35 passes for 138 yards with no touchdowns and three interceptions in two games for the Redskins during the 2018 season.
Sanchez won't be the Redskins' starting quarterback Week 15 in Jacksonville, Tarik El-Bashir of The Athletic reports.
Sanchez replaced the injured Colt McCoy (lower leg) during the second quarter and completed 13 of 21 passes for 100 yards and an interception while finishing Monday night's 28-13 loss to the Eagles.
Sanchez didn't take a snap with the Bears in 2017 and will enter the free agent market.
Sanchez (illness) was not present on the Bears' Wednesday injury report.
Sanchez (illness) is inactive for Sunday's game against the Eagles, Dan Wiederer of the Chicago Tribune reports.
Sanchez (illness) is not on the injury report for Sunday's game against the Saints, Jeff Dickerson of ESPN.com reports.
Sanchez has recovered from a neck injury and was a full participant at practice Thursday, Adam Hoge of WGN Radio 720 AM reports.
Sanchez (coach's decision) is inactive for the Bears' Week 1 matchup Sunday against the Falcons, Brad Biggs of the Chicago Tribune reports.