The Aston Villa coach believes the striker 'carried' the Canaries during his time at Carrow Road and says the forward will not let sentiment stop him from helping his new side win
The duo combined to form a major part of the Canaries' success between 2009 and 2011, which saw the club earn consecutive promotions from League One to the Premier League.
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The pair were reunited in January when Lambert signed Holt on loan until the end of the season, with the 32-year-old set to play against Norwich for the first time since his departure in a key Premier League fixture this weekend.
And Lambert has backed the former Nottingham Forest and Shrewsbury Town man to put emotion to one side and perform to the best of his ability.
"It will be nice for him - he's looking forward to it," the Scot told the club's official website.
"It's his first time, it will be new for him. But he has been around the block though so there won't be any sentimental feelings in his make-up.
"He knows he's here to play for Villa to try and help us beat Norwich, but I am sure the Norwich crowd will give him a good reception for what he did for them.
"I don't think Grant has anything to prove to Norwich. He carried that club on his shoulders for three years.
"He deserves a lot of credit ,along with the other lads there. He was a major catalyst for Norwich, he was great for me. He was player of the year there for three seasons in succession."