Cristiano Ronaldo abruptly left a post-match interview after the Portugal star was repeatedly asked about Lionel Messi's goalscoring exploits at the World Cup, but did concede he had come through a 'tough week'.Ronaldo had seen his long-time rival Messi score a hat-trick in Argentina's opening match of the tournament against Algeria, before netting a brace against Austria on Monday.The performances were in stark contrast to Ronaldo's first as he and Portugal laboured to a 1-1 draw with DR Congo last week.Ronaldo had endured criticism following the display, while Portuguese media claimed the national team was on the brink of a 'civil war'.It followed accusations aimed at Ronaldo’s team-mates from his zealous fanbase - including from his sister, Katia Aveiro - alleging a plot to edge the ageing forward out of the game.The pressure on Ronaldo and Portugal eased on Wednesday as he netted twice in a 5-0 win over Uzbekistan, which saw him become the first man to score in six different World Cups.Cristiano Ronaldo walked out of a post-match interview after being repeatedly asked about Lionel Messi's scoring start to the World Cup Messi has taken the acclaim after scoring five goals in Argentina's opening two matches Ronaldo opened his account by scoring twice against Uzbekistan, making him the first man to score in six World Cups