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Aston Villa captain Grealish has emerged as one of England's key players ahead of Euro 2020 and fans are desperate to see him start against Croatia after a wonderful man of the match performance in the final warm-up fixture against Romania on Wednesday.
With his low sense of gravity and sublime dribbling ability, watching Grealish is incredibly exciting and his skillset gives Gareth Southgate's side a new dimension.
And Gascoigne, who Grealish has been compared to, has admitted he's a fan - although he's not onboard with his unique low socks and tiny shin-pads combination.
He also reserved praise for PFA Young Player of the Year Phil Foden, who has evoked memories of 'Gazza' at Euro 1996 with his freshly dyed hair.
"Jack Grealish is good," Gascoigne told former teammate Jamie Redknapp in a chat for the Daily Mail.
"I just wish he'd pull his f***ing socks up and look like a footballer! But he's always wanting the ball, which is good. Phil Foden is good, too. He's going to be hot.
"He just needs to be greedier. He needs to go for it."
"It was my dream to play for England. Before the 1990 World Cup, Sir Bobby Robson told me I had one game left to prove myself, and that was against the Czech Republic. So I set up three, scored one, and we won 4-2.
"I went for it. I loved playing for England. I loved every minute of it."
Some had suggested that Grealish had been wearing his socks low as a tribute of sorts to the one and only George Best, the Manchester United and Northern Ireland legend.
Although Grealish confirmed it has never been the case, there is a story behind his refusal to pull his socks up.
"A lot of people say that it's because of George Best. While I love him and admire so much what he did, that isn't the reason," he told Birmingham Live.
"Obviously your socks are supposed to go above your calves.
"But one year when I was here, the socks once shrunk in the wash. So they wouldn't go higher.
"That season, I ended up playing really well. So it became a superstitious thing for me. I thought 'I'm going to keep doing this because I've done well'."
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