With Cowboys' defensive tackle David Irving's four-game suspension now served, the Cowboys had to free up a roster spot for him to be eligible to play on Sunday against the Houston Texans.
And the Cowboys did on Saturday, moving center Travis Frederick to the injured reserve list, SportsDay's David Moore reports.
The Cowboys will move C Travis Frederick to IR to make room for DT David Irving on the active roster, a source said. Frederick will be eligible for the final 3 games of the season if he is able to return.
— David Moore (@DavidMooreDMN) October 6, 2018
Frederick hasn't played yet this season, as he's been dealing with Guillain-Barre syndrome.