Cowboys DE Demarcus Lawrence leaves practice with foot injury

Defensive end Demarcus Lawrence left Wednesday’s practice with an apparent foot injury and his availability for the Dallas Cowboys on Sunday is up in the air.Facing Justin Herbert and the explosive Chargers without two starting defensive linemen is a realistic possibility for Dallas. Randy Gregory remains on the reserve/COVID-19 list.Lawrence was scheduled to meet with the media Wednesday afternoon, but the team canceled the session with medical tests planned to determine the nature and severity of the injury.