Former Scotland captain Rory Lawson believes referee Nic Berry was influenced by a passionate Cardiff crowd as he pinpointed exactly where it started to go wrong for the visitors against Wales.
The Principality Stadium hosted a sell-out Six Nations crowd for the first time in two years on Saturday as Wayne Pivac's side ground out a tight 20-17 win just a week after defeat in Dublin.
While Wales often cite a partisan home crowd as their 16th man on the field and the motivation the fans offer is well-known, former scrum-half Lawson claims it may have had an effect on the man in the middle as well during the tight game.
