The twins had been on the Reds' radar for some time before they agreed to join United in February 2007.
They had to wait until the following year, when they both turned 18, to actually sign their professional contracts, but quickly made an impression upon arriving at Old Trafford.
The move from South America – and Rio de Janeiro club Fluminense – was a daunting one at such a young age, but Ronaldo's influence clearly had a massive impact on their decision to make the jump to M16.
“He called my phone, and I'll never forget that,” Rafael told UTD Podcast hosts Helen Evans, Sam Homewood and David May.