straight to your inboxFormer Manchester United striker Dimitar Berbatov has told Scott McTominay he needs to put in 'extra effort' to force his way back into Ole Gunnar Solskjaer's first-choice XI.The Scotland international was one of United's best performers in the early stages of the season but was then ruled out for two months with a knee injury.McTominay worked his way back into the team just before the campaign was suspended and was a squad player when the season eventually returned in