Jack Grealish made an 18-minute cameo for England against Germany.
The Man City midfielder recently admitted that he gets more freedom while playing with England rather than his club.
Gareth Southgate has advised the former Aston Villa man to work on his defensive awareness to guarantee a place as a starter.
His performance against Germany left an impact on Rudiger who believes he has a bigger role to play for England in the World Cup.
“Grealish gave the team a real impact,” Rudiger said. “He is a very dangerous player and those sort of players are going to win you games.
“The England squad has great quality. [Bukayo] Saka comes out, Grealish comes in. I saw a lot of big, big names were on the bench. England have a lot to be optimistic about for the future.”
Rudiger continued: “Players like [Marcus] Rashford and [Jadon] Sancho didn’t even make the squad. You have a lot of depth and you have big players like Harry Kane, [Raheem] Sterling and Grealish.”
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