Andrea Pirlo claimed his players showed they possess the "Juventus DNA" to keep fighting until the end of games this season.
Juve were far from their best in a scrappy Serie A clash with Sassuolo on Sunday and with nine minutes remaining were drawing 1-1 after Gregoire Defrel cancelled out Danilo's opener.
But late goals from Aaron Ramsey and Cristiano Ronaldo sealed the win for the defending champions against a Sassuolo side who played the entire second half with 10 men.
Ramsey has been involved in three goals in his past five Serie A appearances (one goal, two assists) while Ronaldo's strike ensured he has reached at least 15 league goals in his past 15 seasons.
The win helped the Bianconeri notch three consecutive victories in Serie A for the first time since July 2020 as they moved to within seven points of leaders Milan with a game in hand.
"We can improve our quality, we can play better or worse, but the determination is an element that must never be lacking," Pirlo told a post-match media conference.
"It has to be in the Juventus DNA, the determination and desire to push until the last minute.
"It was important for us to give a sense of consistency by winning this evening, otherwise the win at Milan on Wednesday wouldn't mean anything.
"We were a little sluggish at times this evening, but we became a little less organised and more determined, so we showed the hunger required to win the game.
"We are Juventus and therefore have the pressure on us to win every game. We have to face every match as if it's a final, then we'll see where we are closer to the end of the season.
"These games are fascinating to play for everyone, they inevitably raise the concentration levels and the tension too.
"If we don't play every game with the right concentration and determination, we will struggle."
Juve head coach Pirlo also said the club will assess injuries sustained by Paulo Dybala and Weston McKennie.
The pair both limped out in the first half against Sassuolo and are doubts for Juve's midweek Coppa Italia clash with Genoa.
He added: "Dybala had a knock to the collateral ligament on the inside of his knee. We'll evaluate it over the next few days and hope it's nothing serious.
"McKennie already had a slight muscular problem yesterday and he felt it again after the back-heel flick, so he stopped."