Irving has dealt with legal issues this season involving his ex-girlfriend along with a high-ankle sprain he suffered back in November.
According to Fisher, Irving hasn’t participated in practice for the Cowboys or even attended as an observer or watched film.
“He’s just sort of checked out,” a source tells Fisher of Irving.
Irving served a four-game suspension to open the season, which Fisher says was due to him skipping at least one mandatory drug test.
The NFL treats “failure to comply” as a failed test, which means Irving could be facing another suspension from the NFL.
Irving, 25, originally signed on with the Chiefs as an undrafted free agent out of Iowa State back in 2015. He was waived at the start of the regular season and later added to the Chiefs’ practice squad.
The Cowboys signed him to their active roster just a few weeks into the 2015 season and brought him back on a one-year, $615,000 exclusive rights contract in 2017. Dallas used a second-round restricted tender on Irving during last year, which will cost them $2.914 million for the 2018 season.
Irving is in line to be an unrestricted free agent in 2019.
In 2017, Irving appeared in eight games and recorded 22 tackles, seven sacks, a forced fumble and six pass defenses.