The first arrival of Ruben Amorim's reign as head coach of Manchester United, the defender joined as part of the first-team squad.
Despite being in his teens when signing, the versatile youngster comes with big-club experience, having progressed through the Arsenal Academy ranks.
The England Under-19 international made his senior bow for the Gunners in a Carabao Cup victory over Preston North End in October 2024, after previously being in the matchday squad for the north London derby against Tottenham in the Premier League.
Although he can operate in midfield, he is believed to be initially viewed primarily as an option in the centre-back position.
Heaven has played against the Reds in the under-age sides and also at first-team level, appearing in the Tour 2024 match against Mikel Arteta's men in the United States.
After signing a contract until June 2029, with the option of a further year, the Londoner was handed the no.26 shirt.
