Vidal's professionalism has been questioned since moving to Munich, with the Chilean having been charged with drink-driving while in Chile and subsequently accused by media reports of turning up inebriated to a training session in Qatar.
Nevertheless, the 28-year-old has pledged his loyalty - and his life - to his new club.
"Of course I miss Juve," Vidal told TZ. "It will be a strange game because I had four wonderful years in Turin.
"But now I defend the colours of Bayern - I will give my life to win these two matches and the quarter-finals."
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Though Vidal is fully focused on Bayern's success, the four-time Scudetto winner revealed that he keeps in touch with his former team-mates.
"Over the course of four years, the fans developed a deep affection for me and vice versa. The same goes for the guys I played with," he enthused.
"I speak to them from time to time. I still have a great relationship with all of them and I look forward to the reunion."