Xavi Hernandez, who took over as the new manager of FC Barcelona, revealed that his former teammate and friend Lionel Messi texted him and congratulated him after he became the club's new boss. Xavi Hernandez said Barcelona's players will have to play by his rules and raise their standards as the club's new coach laid down a firm message at his unveiling on Monday. Xavi was presented in front of almost 10,000 fans at Camp Nou before signing his contract on the pitch,