In which stadium did Cristiano Ronaldo make his Manchester United debut?

Cristiano Ronaldo made his Manchester United debut at Old Trafford. He entered as a second-half substitute during United’s 4–0 Premier League win over Bolton Wanderers on 16 August 2003.

Ronaldo was 18 when he first appeared for the club. He replaced Nicky Butt in the 61st minute and immediately attracted attention with his dribbling, quick feet and willingness to take on defenders. Although he did not score, his performance created an early sense that United had signed an unusually gifted young player.

The debut followed his move from Sporting CP for about £12 million, then an English-record fee for a teenager. He had impressed Manchester United’s players and manager Alex Ferguson in a friendly between Sporting and United earlier that month, helping prompt the transfer.

This question refers to Ronaldo’s original Manchester United debut, not his return in 2021. His second United debut also took place at Old Trafford, against Newcastle United, which is why the two moments are sometimes confused.