By Richard Martin BARCELONA (Reuters) - Barcelona failed to capitalize on Real Madrid dropping points against Villarreal as the La Liga champions were held to a 1-1 draw at home to Atletico Madrid on Wednesday, while talisman Lionel Messi limped off with a groin injury. Ivan Rakitic nodded Barca ahead in the 41st minute but the home side lost control after the break following an injury to midfield lynchpin Sergio Busquets and Angel Correa fired in the equalizer in the 61st, shortly after Messi had come off. More...