Wichmann (calf) was placed on injured reserve Saturday, per the league's official transactions report.
Wichmann suffered a calf injury early on in Dallas' training camp, the severity of which lands him on season-ending IR.
Wichmann will miss an unspecified amount of time due to a calf injury, Calvin Watkins of The Dallas Morning News reports.
Wichmann allegedly sustained the injury in Friday's practice. It's unclear how long the 27-year-old will be sidelined.
Wichmann (ankle) is active for Sunday's Week 6 matchup with the Lions, Gary Klein of the Los Angeles Times reports.
Wichmann picked up an ankle injury in last week's game against the Bills, but it ultimately won't keep him off the field in Week 6, though he only practiced once this week in limited fashion.
Wichmann is questionable to return Sunday with an ankle injury, Vincent Bonsignore of the Los Angeles Daily News reports.
Wichmann went down blocking for lead RB Todd Gurley, but it isn't clear what the nature of his injury is. However, he appears to have a chance to return.