England manager Gareth Southgate said Saturday's 2-1 friendly win over Switzerland was a really useful test and gave him and his players the chance to work on new systems and then react when things were not going to plan.
England trailed to Breel Embolo's 22nd-minute header and needed good saves by goalkeeper Jordan Pickford to prevent further goals, before Luke Shaw equalised and Harry Kane won the match with a late penalty.
"The subs made an impact and we felt it was right to manage the game that way. Declan Rice was excellent and made a big impact. Really pleased to win the game but some of the individual performances were more telling." Gallagher said he had been nervous but also excited. "It's a great feeling to play at Wembley in front of all the fans -- a really proud moment," said the midfielder, who made his debut off the bench against San Marino last year.
Shaw said Southgate had encouraged him to get forward. "In this formation with a five, Gareth has talked a lot about the wing-backs not just creating chances but also scoring goals and I think that's vital," he said.