Former Premier League referee Dermot Gallagher made his position clear on whether or not Manchester United star Lisandro Martinez should have been sent off for his two-footed challenge. Manchester United were held to a 0-0 draw on Saturday in their Premier League clash against Crystal Palace at Selhurst Park. Erik ten Hag’s men were the dominant side from the contest at Selhurst Park, despite the Red Devils being unable to break the deadlock. United were forced to settle for a point on their trip away from home, with Erik ten Hag’s side currently 11th in the Premier League table after five mat…