The former Barcelona midfielder is set to complete his move today.
But Di Canio warned: “Once he takes the ball from his opponents during the 90 minutes, in a clean way, he gets in and scored many goals. He does not have the energy to give continuity for the full 90 minutes and he played at Barça as a link up player.
“He knows how to play, he's functional, he's an experienced player. He certainly did not lead a healthy life as an athlete.
“If Conte was afraid of players who do not behave impeccably on a professional level, Vidal is not irreproachable but the coach knows him well."