Sam Allardyce leaves Barkley out of England squad and explains why

Sam Allardyce admits that omitting Ross Barkley from his first England squad was the toughest decision he had to make.
Allardyce, who also confirmed at today's press conference that he would name his captain on Tuesday, left Barkley out of his 23-man squad for this weekend's 2018 World Cup qualifier in Slovakia despite the Everton midfielder having enjoyed a promising start to the season.