On 12 August 2021, Tzolis left PAOK to join Premier League club Norwich City on a five-year deal for an undisclosed fee.[6] He made an impressive debut for the Canaries on 24 August, as he scored a brace and assisted a further two goals, to help his team seal an emphatic 6–0 win over Bournemouth and progress to the third round of the EFL Cup.[7] He was voted man of the match for his performance.[8]
On 22 July 2022, he joined Twente in the Netherlands on a season-long loan.[9] He returned from his loan spell on 31 January 2023, after a mutual agreement was reached to cut short his loan spell.[10] During his time at Twente, the left winger scored three goals in 15 appearances.[10]
He scored his first goal for Norwich since his return from loan, and his first goal for Norwich in the league, in a 3–1 win against Birmingham City on 21 February 2023.[11]
On 6 August 2023, Tzolis moved to 2. Bundesliga club Fortuna Düsseldorf on a one-year loan, with an option to buy.[12] On May 30 2024, Fortuna Düsseldorf exercised their buy option.[13]
Club Brugge
On 1 July 2024, the Flemish side paid €6 million to Fortuna Düsseldorf - who had used the Greek striker's €3.5 million buy-out to buy him from Norwich City after his loan spell. The Zweite Bundesliga top scorer will sign a four-year contract guaranteeing a doubling of wages and no release clause is foreseen as Fortuna Düsseldorf are not keeping a resale percentage.[14]
International career
Tzolis has represented Greece at the under-17 level and under-19 level. At the under-17 level, he appeared in 9 matches and scored 6 goals. On 7 October 2020, Tzolis made his debut for the senior national team in a 2–1 loss to Austria after being substituted on in the 82nd minute for Dimitris Limnios. At the time of his debut, Tzolis became the 7th youngest player in the history of the Greece national team. On 11 November 2020, Tzolis scored his first international goal in a 2–1 victory against Cyprus.[15]