2. Radamel Falcao
Falcao has been a long term target for Chelsea but they were unable to buy him as heavy paying Monaco lured him to France. But lately, Falcao has been unhappy with his involvement in the French League and may want to play for a better team in a better league.
Falcao is out injured and is mostly going to miss the world cup, but his performances in the French Ligue 1 has been inconsistent yet yielding some prolific numbers. Falcao would most probably cost Chelsea around 60 million, but his recent injury might cause some concern for the Chelsea boss. Buying a striker who is not fit enough for such a price can be a huge risk.