Portugal take on Uzbekistan in Houston today with their World Cup campaign overshadowed by an escalating internal crisis centred on Cristiano Ronaldo's diminishing influence.The 41-year-old's sister Katia Aveiro has inflamed tensions following the disappointing 1-1 draw against DR Congo, posting on social media that teammates "magically forgot how to pass the ball, how to win the ball, how to counter-attack."She added: "The game rolled from midfield backwards. This World Cup is strange."Aveiro then intensified the controversy by liking an Instagram post ridiculing Bruno Fernandes, which claimed the Manchester United captain habitually disappears during pivotal moments.The intervention has thrust Portugal's squad dynamics into the spotlight ahead of a fixture Roberto Martinez's side cannot afford to mishandle.The strained atmosphere was evident during the Congo match itself, with visible frustrations erupting among Portugal's attacking players.When Ronaldo seized a shooting opportunity from Fernandes's boot and fired wide, the Manchester United midfielder threw his arms up in exasperation before pounding the turf with his fist.Behind them, left-back Nuno Mendes could be seen screaming at the sky in apparent disbelief.Ronaldo's statistical contribution painted a bleak picture: zero shots on target, no key passes, no successful dribbles, and just 22 passes received across the entire ninety minutes.He covered merely 7.4 kilometres, ranking third from bottom among all outfield players in the opening round of fixtures.Midfielders Vitinha and Joao Neves appeared to favour shorter passes to Fernandes rather than seeking out their captain further forward.Former England striker Gabby Agbonlahor has condemned the social media activity from Ronaldo's family as damaging to squad harmony.Speaking on talkSPORT Breakfast, he said: "I don't like that. That's toxic because Ronaldo wouldn't want that either. Bruno Fernandes is a top player, I think Ronaldo struggled because he was playing central midfield himself, that's the problem, he was playing too deep."ESPN analyst Taylor Twellman offered a more direct assessment of Portugal's predicament, stating: "This is the best team Ronaldo's ever had around him for Portugal going to the World Cup. I think Portugal is at their best if he doesn't play."The veteran forward has now gone ten consecutive major tournament matches without finding the net for his country, with his last open-play goal at a World Cup coming five games ago.Despite the mounting external pressure, teammates have rallied publicly behind their captain.Winger Francisco Conceicao insisted there is no obligation to feed Ronaldo, telling reporters: "I pass the ball to whoever I think is better unmarked at that moment. It's not like I have time to think about who's... what's the face of the teammate next to me, no. I think we do everything by instinct."Defender Diogo Dalot revealed the squad had anticipated such scrutiny, explaining: "We had the opportunity before arriving at the World Cup to have a detailed conversation about this. "The fact that we had that pre-World Cup conversation to prepare ourselves for these moments meant that when it actually happened, we were able to send the message that the group is unshakable."Win two tickets to a FIFA World Cup 2026 quarter-final. ExpressVPN are giving one lucky Friend or Member the chance to experience football's biggest tournament live, with flights and accommodation covered by GB News. Entries close 30 June. ENTER HERE.Our Standards: The GB News Editorial Charter