But in the 91st minute Giaccherini gave the Bianconeri a victory that had looked likely throughout as he was the first to react to a loose ball in the box after Catania's keeper Mariano Andujar could only parry a dangerous Paul Pogba cross.
Eighth-placed Catania came into the game looking to bounce back after their disappointing 3-2 loss at home to Inter last week, where they had gave away a two-goal lead. But they were never able to get any meaningful possession and were under pressure for the full 90 minutes.
Juve showed no ill effects of their midweek Champions League match at home to Celtic and attacked from the kick off with Pogba and Andrea Pirlo in complete control of a match which confirmed Catania struggle on the road this season with only three wins away from home.
