straight to your inboxManchester United fans have congratulated Mason Greenwood for his well deserved first England call up.Gareth Southgate named his squad for the upcoming Nations League fixtures against Iceland and Denmark on Tuesday, with young striker Greenwood being one of the surprise additions.The 18-year-old has burst on to the scene this season at United after being promoted to the first team by Ole Gunnar Solskjaer, and the manager's trust was repaid as Greenwood netted 17 goals in