Magical Mourinho: Porto's 2003-04 journey to UEFA Champions League glory | Goal.com
Champions League winners list by year | Who has won the most UCL titles in history? | Goal.com
ESPN FC - The last time Barcelona played in the Europa League was 2003-04. Lionel Messi made his debut for Barcelona in 2004-05 and he left 4 months ago. We're just saying 🤷♂️ | Facebook
2003/04: Porto pull off biggest surprise | UEFA Champions League | UEFA.com