"I think for the teams that went towards the end of the World Cup it's a really hard period because so many players have missed pre-season and you're not really sure what physical condition they're in".
Alli played the entire ninety minutes for his country at Wembley on Saturday evening as England kicked-off their Nations League campaign with a disappointing 2-1 defeat to Spain.
Striker Marcus Rashford scored a second-half victor as a young and much-changed England avoided an unprecedented fourth-successive defeat by beating Switzerland 1-0 in a friendly worldwide on Tuesday. "We know how exciting he is and we know he is going to be a top player, he's got a super mentality and he's great to work with".
"To get two goals this week, two really good finishes, is really important for him".
Southgate found his players debating their poor first-half showing when he arrived in the King Power Stadium dressing room - something he takes heart from.
Petkovic awarded debuts to three young players in Switzerland's crushing 6-0 win over Iceland in their Nations League opener - right-back Kevin Mbabu, midfielder Djibril Sow and forward Albian Ajeti - and although the team that lined up against England was more experienced, with 30-somethings Stephan Lichtsteiner and Johan Djourou coming into the starting XI, there was novelty in the Swiss tactical setup.
They're intelligent footballers, they should have a view of what's going on.
"Everyone voiced their opinion and I think we did a lot better in the second half". "Everybody has got to play a part in that but the clubs own the player and they have got to do the right thing for themselves".
"We expect that, we encourage it". We kept the ball better after half-time also. "It's the way we can keep raising the standards".