Shawcross made his senior international bow as a 73rd-minute substitute in the Three Lions' friendly in Sweden, replacing his fellow debutant and centre-back Steven Caulker, who had scored after being handed a place in the first XI. England were winning 2-1 when Shawcross came on and subsequently ended up losing 4-2, with frontman Zlatan Ibrahimovic scoring all four goals for the hosts, the last of which was a stunning long-range overhead kick.
The striker netted Sweden's equaliser shortly after Shawcross' introduction having drifted away from the Stoke player, something Pulis is sure the 25-year-old will be disappointed by. Speaking ahead of Stoke's Barclays Premier League game at West Ham on Monday night, Pulis said: "We are absolutely proud as punch that we have a player representing England.
"There hasn't been one at this club for a long time. It's a great fillip for everyone around the football club, and another feather in the cap for the club. He sat on the bench for around 75 minutes and he is such a big lad, to get him to get on, get going and get into it was a big ask.
"But he enjoyed it, he has got his cap and England shirt and he will always treasure that. We hope he has learned from the experience. I was disappointed he never started if I'm honest - I think he deserved to start. (England boss) Roy (Hodgson) picks the team, and I am going to be biased. He has played Caulker and I think he is going to be a very good player, but I just thought Ryan might have got the nod.
"He was disappointed with the goal - I think he'll be the first to hold his hands up on that one. But he looked a little bit frozen when he came on - not mentally, but just a bit stiff. They should have been warming him up for 30 minutes before they brought him on."