The centre-back scored a last-minute winner in the 3-2 win over Germany, which also saw strong contributions from three other Spurs players.
The impressive victory in Berlin’s Olympic Stadium was lit up by four Spurs players, with Dier’s last-minute winner complementing Harry Kane’s earlier strike.
There was also a man-of-the-match performance from Dele Alli and an impressive international debut from Danny Rose, while Kyle Walker was an unused substitute.
Pochettino may also take credit for developing several other high-profile members of Roy Hodgson’s side, with Adam Lallana and Nathanial Clyne both working under the Argentine at Southampton.
And according to the Mirror, Dier is under no doubt that his club boss deserves credit for any success enjoyed by England, who continue their preparations for Euro 2016 with a friendly against the Netherlands at Wembley on Tuesday.
He said: “We have to be thankful for our manager, for being able to put us in this position by giving us a chance at our club and improving us.
“Us Spurs boys know how lucky we are to have him because he’s been brilliant.
“He demands a lot of us, always wanting us to improve.
“That’s what’s made us able to be in the position we are now so we’re very grateful for him and we want to repay him.
“We really enjoyed it and I think all four of us put in good performances.”
Dier, who came through Sporting Lisbon’s academy, watched England play at Euro 2004 as part of the tournament’s organising committee when he was a boy.
Now, at the age of 22, Dier insists he is not taking anything for granted, despite a place in England’s Euro 2016 squad looking increasingly likely.
He continued: “I saw a lot of Euro 2004. I lived in Portugal at the time so I saw a lot of games.
“I saw all of England’s games and watched most of Portugal’s, too, so it was an enjoyable tournament.
“I am not getting carried away now, though. Whether I make the squad is a question for someone else.
“I will just keep trying to do my best like I did in Berlin, for my club as well, and then see where I end up.
“It’s my aim when I get the chance to try to impress the manager for England and keep a place in the team.”