Martinez watched Colunga, on-loan from Recreativo, score in Zaragoza's 3-3 draw with Villarreal on the final weekend of the Spanish Primera Division season and feels his compatriot could thrive in the Barclays Premier League.
"Colunga is a good player who has done very well this season," Martinez said. "He has been a good player for Real Zaragoza, but not only for his speed.
"Colunga is also intelligent, and he is a player who always creates problems and is very smart both with and without the ball.
"The way he has adapted to Zaragoza demonstrates the great player he is. And he wouldn't have trouble adapting to the way we play in England."