According to the Daily Mail reports yesterday, West Ham striker Enner Valencia has a hidden buy-out clause in his contract that would allow a Champions League club to sign him, with the figure needed to release him just £20million. With Chelsea's attacking options limited by Andre Schurrle's impending move to Wolfsburg, Jose Mourinho is apparently looking for more attacking options. His side are too reliant on Diego Costa's goals and have limited other options up-top if he picks up more bans or injuries: Didier Drogba has limited long-term impact and Loic Remy just doesn't look up to the task. That situation has led to Mourinho looking to identify options to bolster his squad with someone who can genuinely impact the goals for column, and Enner Valencia looks like a viable option. Chelsea have more than the 15 Premier League games to concentrate on for the rest of the season, with three trophies still in sight, and that might put too much pressure on Diego Costa, who is still getting to grips with the English style of play, despite his strong start. It would take something big to get the deal pushed through, but money clearly wouldn't be a problem for Roman Abramovich. And he probably doesn't care how many West Ham fans he might upset in the process.