Chelsea midfielder Juan Mata has warned his teammates to play close attention to Manchester City's Yaya Toure during their FA Cup semi-final on Sunday.
Toure has impressed for City throughout this season, and ahead of their last-four match at Wembley, Mata has described the Ivory Coast international as the "complete player".
The 24-year-old told The Sun: "Yaya is one of the best midfielders in the world.
"He is the complete player. He can defend, attack, score, dribble, he has great skills and he's so tall and powerful.
"It is so difficult to defend against him. We have very good midfielders too and will try to deal with him but not just him, all their team, because City are a very, very good side."
The former Barcelona player has scored 10 goals in 32 appearances for City this season.