There will be widespread changes when Croatia visit in the winner-takes-all Nations League encounter at Wembley, where Rooney's speech saved the players from a critical post-match debrief on Thursday night.

"I thought some of our attacking play, the first half hour and last 20 minutes, was really exciting," Southgate said.

"Some really nice moments for some of the debutants, in particular, for some of the young players – for Trent to get his first England goal, a really well worked bit of attacking play, nice decision and weighted pass from Jadon (Sancho).

"Great for Callum to get his goal – he probably would feel he might have had that earlier in the game – so some good moments there.

"I didn't like us without the ball as much. I thought at times we pressed really well, but at times the USA got through us too easily and towards the end of the game we didn't play with discipline.

"We were caught in transition and wide open. If we do that on Sunday, we will lose.

"We haven't had that discussion because Wayne gave a really nice speech at the end and I didn't want to rain on his parade!"

Rooney's team-mates ensured that he got the number 10 shirt in Thursday's match, as well as the captain's armband when he came on in the 58th minute – gestures that the forward clearly appreciated.

Asked what the 33-year-old had told the players, Southgate said: "That he really appreciated the way that everybody had made him feel welcome.

"Even for him as a senior player, it's difficult to walk back into a dressing room.

"A lot of players he's played with, but a lot he hasn't and there's a lot of new staff.

"He has been brilliant I have to say. The time he's given to all of the players, the little conversations he's had with a lot of the younger ones.

"We got him to present the three new caps with their shirt and he talked about what playing for England had meant to him, what this first game meant and what it should mean to them.

"So, some really excellent messages and the humility he showed in his training – he's tracking back in the five-a-sides as if his life depended on it.

"Tonight, he had some lovely touches, a couple of really exquisite through balls, and we were a yard to the left of Brad Guzan away from a fairytale ending for him.

"We wanted to predominantly look at some young players in what was a good level of opponent to test them.

"We had a really inexperienced team out there again, so they've come through and learned a lot, and we've paid our respects to one of our greatest ever players.

"And I think hopefully we managed within our group to do that in a way we felt was fitting."

DC United forward Rooney now returns to his post-Major League Soccer season downtime as England focus on winning Nations League Group A4 after Croatia shocked Spain 3-2 on Thursday.

"It's shown the quality that Croatia have," Southgate added.

"We knew that would be a tough game because I think probably the first game they've had at home since the World Cup with a crowd in, so it would have been an electric atmosphere.

"They've shown not only their quality but their resilience again to win it in the 93rd minute.

"It's brilliant. It sets up a really good finish to the year here. I think it was already a sell-out crowd and it's a game with plenty riding on it, which is exactly the sort of test we want."

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