Rio Ferdinand blames ex-Man United team-mate for gifting Ronaldo a hat-trick for Real Madrid in 2003

Rio Ferdinand has hit out at a former Manchester United team-mate for allowing Ronaldo to score three times in their 2003 Champions League elimination. 

Cristiano Ronaldo - Wikipedia

Rio Ferdinand makes sensational boast about Cristiano Ronaldo after hat- trick - Mirror Online

Cristiano Ronaldo has been failed by Manchester United, says Rio Ferdinand

Cristiano Ronaldo - Wikipedia

The 50 Most Controversial Soccer Players of All Time, News, Scores, Highlights, Stats, and Rumors

Rio Ferdinand reveals John O'Shea was left 'panting' after facing Cristiano Ronaldo in 2003 friendly

Why do most Manchester united fan think Ronaldo is their problem, when it's clear he's the one holding them up? - Quora

Rio Ferdinand makes sensational boast about Cristiano Ronaldo after hat- trick - Mirror Online

Rio Ferdinand recalls the time he played 'an alien' at Manchester United - Manchester Evening News

Cristiano Ronaldo - Wikiwand