The 24-year-old played in all but one of Villa's games in the Premier League last term, mustering 44 appearances in all competitions whilst chipping in with the club's goal of the season against Stoke City in April.
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"Once you start to do that, make a right name for yourself and start to win things and start to progress your career, then people can say things.
"He's an unassuming young lad. He's fitted in really well. You know what you're going to get with Matty with his consistent performances."
The 43-year-old was asked whether Lowton's form could see him considered for an international call-up from England and replied: "It's entirely in his own hands. His performances over the course of the year have been consistently high.
"We got him for £1 million or whatever it was and he's been excellent."