Cowboys head coach Mike McCarthy confirmed Lamb is dealing with a sprained ankle and will remain a limited participant at Thursday's practice, Michael Gehlken of The Dallas Morning News reports.
McCarthy noted that Lamb sustained the injury in Wednesday's practice rather than in the Cowboys' Week 8 win over the Vikings, resulting in the second-year wideout opening Week 9 prep as a limited participant. The fact that he's back on the field a day later in some capacity suggests that the sprain is a minor one, but the injury is still something fantasy managers will need to monitor heading into the weekend. If Lamb isn't able to upgrade to full participation by Friday, he'll likely carry a questionable designation into Sunday's matchup with the Broncos.