Aston Villa got rid of Tommy Elphick in the summer, with the defender moving to Huddersfield Town.
Grealish has really enhanced his reputation at Villa over the past two seasons, with the playmaker now regarded as one of the finest English talents.
Grealish was a key man as Villa earned promotion last term, and he has gone on to dazzle in the Premier League, despite Dean Smith’s side’s struggles.
Elphick played with Grealish at Villa for three years, during his stay with the Midlands club.
And the Huddersfield Town centre-back only has praise for the 24-year-old.
“The first day I saw Jack Grealish in training, I thought ‘Wow, this is someone special’,” Elphick said.
“Yes, he can look very confident, shall we say, but you have to have that self-belief, and arrogance almost. And he has the ability to back it up. He knows he has made mistakes but learning from them has brought him to where he is now. He has a heart of gold and he is a great family man.”
Elphick never had the same impact at Villa as Grealish did, with the centre-back failing to impress during his time with the claret and blues.
The centre-back ultimately was sent on a series of loan spells, before making the move to Huddersfield in the summer.
Grealish, meanwhile, will be crucial to Villa’s chances of staying in the Premier League this season.
The creator already boasts impressive figures for both goals and assists this term, but Villa are currently in 18th place in the table.