The Bianconeri were reeling from their Champions League woes, while Inter looked to have the upper hand following their turnaround in recent games.
Inter dominated the first half at Allianz Stadium, creating a handful of opportunities, but failed to convert any of them.
Juve became more active in the second half, with Filip Kostic setting up Adrien Rabiot for the opening goal.
The Serbian wing-back added another assist for Nicolo Fagioli’s winning goal.
Massimiliano Allegri lauded his side’s attitude to solidity in the massive victory over Inter.
The Italian gaffer told DAZN h/t (Football Italia): “It was great to watch this game, especially as we were a little lucky in the first half.
“But when you have a proactive attitude and work for your teammate, you are more likely to get a positive result.
“This is the right spirit and raises the level of competition within the squad.”
Allegri was also relieved to end the poor record against Inter in recent years, with last night’s victory marking Juve’s third consecutive win in Serie A this season.
“The most satisfying thing is to beat Inter after three defeats and a draw in the last four,” added Allegri.
“It was important to win a head-to-head match – we played well technically and only ran a risk with Rabiot’s error on a Lautaro Martinez chance. With this attitude, it is unlikely we concede goals.”
The Old Lady have climbed to the fifth position in Serie A, while the defeat leaves Simone Inzaghi’s men in seventh position.
Just two points off the Champions League spot, Juve will face Hellas Verona and Lazio before the World Cup break.
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