The 25-year-old has spent the past 18 months with Osasuna and De Guzman has outlined the qualities that the Belgium international would bring to Michael Laudrup's squad.
"He's a strong player. He scores goals, he has a good shot and he's fast," said De Guzman in the South Wales Evening Post. "He would fit in.
"If he came here, I think he'd fit in with the players here who like to play football."
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