It was the home side who dominated the ball with 69 per cent possession, however they only managed three shots on target, the same as Juventus.
Inter started brightly with Barella attempting a shot from 25 yards out after less than two minutes played, forcing a good save out of Wojciech Szczęsny.
It was Barella and Szczęsny at it again 15 minutes later, when the Italian hit a volley straight into the path of the Polish keeper.
The game’s only goal came in the 23rd minute thanks to a well-worked team goal.
Juve moved the ball into the middle of the ground from their back third in one pass, before Rabiot and Vlahovic combined to move the ball up the field.
Rabiot knocked the ball to Kostic at the edge of the box and the Serbian hit it low and hard into the bottom right corner of the net.
Andre Onana should have done better with his positioning, leaving most of the goal wide open.
Inter have dropped to third behind Lazio, whole Juventus are closing in on a Conference League spot.
