Just when the FIFA World Cup in Brazil seemed to be going on smoothly, there were three security breaches that gave organisers some of their most embarrassing moments yet.

Andressa Urach, a former beauty contestant, was frog-marched out of Portugal’s training ground by security staff just minutes before Ronaldo and his team took to the pitch. British newspapers last yearreported claims from her that Ronaldo, 29, had cheated on his girlfriendIrina Shayk with her. At the time, the Portuguese superstar angrily denied the claims, tweeting that he was “deeply outraged by a situation intended, in vain, to affect my personal life.”

Soon after Urach’s ejection came news that Brazilian security services had detained a man who sneaked into Argentina’s training camp in Belo Horizonte to seek star striker Messi’s autograph. The 33-year-old Brazilian, who had received a T-shirt from Messi last week after cleaning his boots, was seen crying as he was led away. He told police he just wanted to get the shirt signed.

Organisers’ security woes only got worse when scores of ticketless Chilean fans gatecrashed Rio de Janeiro’s Maracana Stadium, breaking through fences in a desperate rush to see their team play Spain. The fans, many wearing Chile’s red jersey, shattered a glass door at the media centre, broke fences and partition walls, and swarmed into internal corridors before security guards stopped them. Brazilian authorities arrested 85 people and ordered them to leave the country.

FIFA said none of the intruders had made it into the stands to see their team’s stunning 2-0 victory, which put Chile into the second round and sent defending champions Spain packing. But a security guard said some had found their way into the stands. The incident took place despite the presence of 1,500 security staff at the stadium, plus about 5,000 police on duty in the surrounding area. Afterwards FIFA said it would soon announce new security measures.