Arnau Francisco Tenas Bazan

Barcelona

Born in Vic, Barcelona, Catalonia, Tenas began playing as a goalkeeper at the age of 3, starting with his local side Vic Riuprimer. He joined La Masia in 2010, and worked his way up their youth categories. He made his senior debut for Barcelona B in the Segunda División B in a 2–1 win over Teruel in March 2019. He soon after started training with the senior Barcelona team, and in October 2019 got his made the bench for the first time in a La Liga match against Alavés. On 27 June 2020, Tenas extended his contract with Barcelona, keeping him at the club until June 2023 with a release clause of € 100m. He was on the bench for the 2021 Copa del Rey Final, as Barcelona beat Athletic Bilbao 4–0.

Paris Saint-Germain

On 30 July 2023, Tenas signed for Ligue 1 club Paris Saint-Germain on a three-year deal. On 3 December 2023, he made his debut for the club in a 2–0 away victory over Le Havre, coming on as a substitute following the expulsion of Gianluigi Donnarumma eleven minutes into the match. Tenas went on to make seven saves, the highest number of saves for a goalkeeper as a substitute in a Ligue 1 match since 2016. He was hailed as an "unexpected hero" on the occasion of his first top-flight appearance.

Villarreal

On 28 August 2025, Tenas joined La Liga club Villarreal on a four-year contract.

Loan to Mallorca

On 25 July 2026, after being a backup option, Tenas moved to Segunda División side Mallorca on a one-year loan deal.

Tenas is a youth international for Spain, having represented the Spain U17s, U18, U19s, and U21s. He represented Spain at the 2019 UEFA European Under-19 Championship and helped them win the tournament, winning man of the match in the semi-final, and being named goalkeeper of the tournament. On 26 March 2022, Tenas was an emergency call-up to the Spain national team after Robert Sánchez had to drop out for personal reasons. Tenas was called up to Spain U21 squad for the 2023 UEFA European Under-21 Championship in Georgia and Romania. He served as the team's first-choice goalkeeper throughout the tournament, where Spain finished as runners-up after a 1–0 defeat to England U21 in the final. In 2024, Tenas was included in Spain U23 squad for the 2024 Summer Olympics in Paris. He was again the starting goalkeeper under manager Santi Denia, featuring in five of the team's six matches. In the 120th minute of the gold medal match against France U23, Tenas initiated a counter-attack with a long throw from inside the box that reached Sergio Camello in the centre field, who went on to score Spain's fifth goal. Tenas was credited with an assist, and Spain secured the gold medal with a 5–3 victory.

Tenas is a goalkeeper.

Tenas was born into a family of footballers, as his grandfather, and father were both football goalkeepers. His twin brother, Marc, is also a professional footballer playing for Gimnástica Segoviana.