Black Stars midfielder Michael Essien has told Barcelona that Chelsea will be just as tough in next week's Champions League semi-final return. Barca stars Xavi and Andres Iniesta complained of being kicked during Tuesday's 0-0 Nou Camp draw. But Blues midfielder Essien declared:"In modern football you need to be strong. "That is the way we play. Any time we tackled them they seemed to fall over." Xavi, who captained the Catalan club against Chelsea, said: "In England they talk about fair play so much. It's a shame that they don't put that into practice out on the pitch. "There was no fair play from Chelsea at all. We played football; they did not play anything at all. The [Michael] Ballack challenge was a blatant red card but the referee did nothing. We had them holed-up in their own penalty area for the whole game." Source: the sun