The Potters boss says he is not at all surprised by the former Wolves striker's success since moving to the Stadium of Light, having admitted trying to sign the Scot
Speaking ahead of Saturday's encounter between the Potters and the Black Cats, the Welshman claimed he is not surprised by how quick the Scot has adapted to his new surroundings.
"He's one of the players we looked at in the summer and I'm not surprised he's been a success," Pulis told Sky Sports News.
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"He's good in the box, takes good positions, he's always on the move and his goalscoring record is first class."
Fletcher has already scored five goals in six Premier League games for Sunderland since his summer switch and Pulis believes he could turn out to be a bargain even at £14 million.
He added: "They paid a lot of money and it raised a lot of eyebrows. But he's certainly given them a good return. He might be one of the bargains of the season."