The Scotland national football team has made a significant change to their World Cup squad, with Manchester United teenager Tyler Fletcher replacing the injured Billy Gilmour. Fletcher, the 19-year-old son of former Scotland captain Darren Fletcher, made his international debut as a half-time replacement in Saturday's 4-1 friendly win over Curacao at Hampden. Napoli midfielder Gilmour damaged his knee in a first-half incident, and his withdrawal from the squad was announced later in the evening. Fletcher has played more minutes for Scotland than he has for his club, having come off the bench twice for United this season. Scotland head coach Steve Clarke had mentioned Rangers' Connor Barron, Andy Irving of Sparta Prague, and Lennon Milller of Udinese as standby options following Gilmour's injury. Clarke expressed his disappointment for Gilmour, saying he has been an integral part of the team's World Cup qualifying campaign. The timing of this injury is cruel, and we all feel for him, said Clarke. Fletcher's addition to the squad boosts our numbers for training, given the staggered arrivals of those who are still playing domestically, and it allows us to take a closer look at some boys who are on our radar, said Clarke. The Scotland party flies out to Florida on Sunday, and there is a final warm-up game against Bolivia in New Jersey on Saturday, 6 June. Having qualified for the World Cup finals for the first time since 1998, Scotland will take on Haiti, Morocco, and Brazil in Group C. Kenny McLean, who played with Darren Fletcher at the start of his international career, spoke highly of the debutant, saying he could see something special in him. In my first session with Scotland, Darren stood out a mile, said McLean. Fortunately for us, his son is pretty similar, and there's a lot of potential. The Scotland national football team's World Cup squad is taking shape, and Fletcher's addition is a significant boost to their chances. With a tough group ahead, Scotland will need all the talent they can get to make a deep run in the tournament. The team's preparations are well underway, and fans will be eager to see how they perform in the upcoming warm-up games. As the World Cup approaches, the Scotland national football team is ready to take on the best teams in the world, and Fletcher's debut is a promising sign for the future. The squad's depth and talent will be tested in the coming weeks, but for now, the focus is on preparing for the big stage. And with Fletcher on board, Scotland has a fresh face to exciting fans and bring new energy to the team.