Argentina coach Lionel Scaloni defended Lionel Messi, saying the star was still key to his team despite a quieter Copa America campaign.Messi has scored just once, from the penalty spot against Paraguay, in four games at the tournament, where Argentina reached the semi-finals courtesy of a 2-0 win over Venezuela on Friday.Amid criticism of the Barcelona star, Scaloni defended Messi, saying there were no doubts over the 32-year-old. Article continues below Editors’ Picks ‘Everyone legged it on to the pitch!’ – How Foden went from Man City superfan to future superstar Emery out of jail – for now – as brilliant Pepe papers over Arsenal’s cracks What is Manchester United’s ownership situation and how would Kevin Glazer’s sale of shares affect the club? Ox-rated! Dream night in Genk for Liverpool ace after injury nightmare “I think, along with many other people, that he [Messi] is an essential addition on the pitch,” he told a news conference.”If you were here to see how much he contributes in the dressing room, how much he contributes on the pitch for his team-mates, maybe you would think differently.”I can assure you he is a big part of the team, we have no doubts about that.”Scaloni added: “Messi is Messi. He’s the best, above everyone else.”@CopaAmerica @Argentina 1 (Lautaro Martínez) – #Venezuela 0¡Comenzó el segundo tiempo en el Maracaná! #VamosArgentina ! pic.twitter.com/sjVbwM2CKL — Selección Argentina (@Argentina) June 28, 2019 Argentina’s win sent them through to a blockbuster semi-final against Brazil in Belo Horizonte on Tuesday.Scaloni is excited by the meeting between the rivals, with hosts Brazil having edged past Paraguay on penalties.”This match will be something beautiful to experience for all of you, for all football fans out there,” he said.”For us on the bench, it will be harder. But it will be a beautiful game, very nice, and we will try to complicate things for them and try to win it.”Messi not firing on all cylinders at the tournament has allowed others to shine.Lautaro Martinez opened the scoring for the Albiceleste against Venezuela, his second goal in as many games, having scored against Qatar.Scaloni has changed tactics in those games, playing the five-time Ballon d’Or winner behind a front two of the Inter man and Manchester City’s Sergio Aguero.Those are the only two games Argentina have won at this tournament, losing to Colombia 2-0 in their opening group game and then drawing with Paraguay in the other.They now have a chance to make their third straight final, and avenge their defeat in the previous title games.Their nemesis from those games, Chile, are in the other semi-final after defeating Colombia in a penalty shoot-out later on Friday.