Campinas - A former contestant in Brazil's Miss BumBum pageant - who claimed she slept with Cristiano Ronaldo - was escorted out of Portugal's training ground by security staff on Wednesday just minutes before the squad emerged.
Andressa Urach, wearing a red Portugal top, tight black shorts and knee-high white socks, had a microphone in her hand and was apparently wearing official accreditation.
But, surrounded by a knot of photographers, she was removed from the Estadio Moises Lucarelli in Campinas.
British newspapers last year reported claims from Urach that the Portuguese captain had cheated on his girlfriend Irina Shayk with her before a big match.
At the time Ronaldo issued a series of tweets, angrily denying the claims and saying he was "deeply outraged by a situation intended, in vain, to affect my personal life".
On her Twitter page, Urach describes herself as the host of the Muito Show and a Miss BumBum runner-up.
Following the incident, she tweeted: " (sic) I came to give good luck to C7 (Ronaldo) and was removed from the pitch and they took away my press credentials."
"Where is the freedom of expression? I went to do a story for the #muitoshow," she added.