Martinez helped bring out the best in Maloney during their time together at Wigan.
The Scot said: "It's a horrible feeling sitting in the stands. But the move to Wigan turned my career around.
"It has been brilliant. I was always motivated to play for the manager. Roberto can be hard but he earns his players' respect because he is so passionate about the game.
"Any player would love his system and style of football. It gets you up in the morning excited about playing for him and going into training.