CHELSEA would respond to a Manchester City approach for Eden Hazard by asking for Sergio Aguero in exchange. City have been linked with a British-record move for Hazard of £150m in the summer. But Chelsea are already fighting to keep the Belgian star out of Real Madrid’s clutches and are discussing a new contract with Hazard, 27. They wouldn’t want to sell him to a Premier League title rival and would only consider doing so if Hazard asked to go - and City were prepared to include goal-king Aguero in the deal. City’s record scorer is highly regarded at Stamford Bridge and it’s understood owner Roman Abramovich would love to see him at Chelsea.