believes gentle giant Christian Benteke
will give defenders a brutal workout in the season finale.
Villa are eyeing progress up the Barclays Premier League table in the closing weeks of the campaign, starting with QPR on Saturday.
And Guzan thinks goal hero Benteke will be an irresistible force in that basement battle for points.
He said: "I can't think of a player at this club over the past few years who has made such an initial impact. He's been absolutely massive for us.
"He has really exploded on to the scene for Villa. From the first minute, he's been fantastic.
"He's great in training. He works incredibly hard in training and he transitions all his skills from the training ground during the week on to Villa Park at the weekend.
"His best is yet to come, definitely. He's only young and he's still learning.
"He's also getting used to the Barclays Premier League after several seasons in Belgium. That takes time - not that you'd think it from his form over the past few months.
"He's a gentle giant off the field too. He's a bit on the quiet side but he likes to have a little bit of banter when he has shooting practice. He's a good lad.
"The guys really like him. The fans have certainly taken to him.
"He has terrific ability at relieving pressure by holding the ball up. It's not only his ability in the air. He has real skill with his feet too.
"His link-up play and his ability to bring other players into the game has been phenomenal."
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