20 year old Borussia Dortmund right-back Felix Passlack joined Norwich City on a season long loan on 2nd July 2018.

After playing for youth sides SV Fortuna Bottrop and Rot-Weiss Oberhausen, he joined Dortmund's youth set-up in 2012. He made his professional debut against Darnstadt 98 on 2nd March 1998 and went on to make 20 first team appearances, including playing in the Champions League and against Bayern Munich.

He spent the 2017/18 season on loan to Hoffenheim but made just four appearances.

Passlack has been capped at Germany at every level from under-16 to under-17, including captaining the Under-17 side when they reached the final of the European Championships.

He said “I’m looking forward to next season, I’m very happy to be here and I hope I can help the team. It’s my first time in England and it was a dream as a child. I think English football is perfect for me as it is strong, like myself, and I like the style of play. I’ve played with Mo Leitner at Dortmund and Christoph Zimmermann, and it’s good to know some players here. I’m looking forward to the new season.”

Passlack made his Norwich debut on 14th August 2018, starting in the League Cup clash with Stevenage at Carrow Road which City won 3-1. He made a total of six appearances in 2018/19 as Norwich won the Championship title; being limited by the form of Max Aarons

On 2nd July 2019, he was loaned to Dutch side Fortuna Sittard.

During 2020/21 he remained at Dortmund and impressed the Dortmund hierarchy with his hard work. Passlack came off the bench in both legs of the Champions League round of 16 tie against Sevilla and had made six Bundesliga appearances this season, scoring once. Long-serving full-backs Lukasz Piszczek and Marcel Schmelzer are both set to leave Dortmund in the summer of 2021, meaning Passlack may have an enhanced role in the first-team squad which is why the club plan to extend his current contract.

He moved to VfL Bochum in April 2023. He had played 55 times for Dortmund, scoring three goals.