Matheus Nunes, the 27-year-old full-back for Manchester City, is an injury concern for the Portugal national team as they prepare for the World Cup. After a successful season with 49 appearances for City, including 34 in the Premier League, Nunes was expected to play a key role in the tournament. However, he will miss the first warm-up match against Chile due to injury, as confirmed by Portugal's head coach Roberto Martinez. Martinez stated that Nunes is not fit to train and emphasized the importance of not taking risks with his health. The team hopes he will be ready for their next warm-up match against Nigeria, scheduled for June 14. Nunes faces competition for a starting position from former City player Joao Cancelo and Manchester United's Diogo Dalot. The World Cup group stage match against DR Congo is set for June 17, and Nunes's fitness will be crucial for Portugal's campaign. Manchester City will be well represented in the tournament, with 19 players from the club participating.