Barcelona coach Pep Guardiola has warned Zlatan Ibrahimovic to control his temper, following a nervous performance by the Swede in Saturday's 1-1 draw with Villarreal. Ibra has repeatedly protested the referee's decisions during the Liga draw, before being booked for a tough challenge on Diego Godin late in the game. "He's a temperamental player and we need to be a bit careful because we might end up one day with 10 players," Guardiola told the post-match conference. "Ibrahimovic needs to be strong and he is capable of doing it as he's a great player,” he added. “He can't control the referees' decisions." Watch Ibra's challenge on Godin
