Chelsea have a long list of alternatives should they fail to land Atletico Madrid striker Radamel Falcao next month.
Falcao is Blues owner Roman Abramovich's top target for the January market.
The London Evening Standard says Gonzalo Higuain (Real Madrid), Edinson Cavani (Napoli), Theo Walcott (Arsenal), Loic Remy (Marseille), Andre Schurrle (Bayer Leverkusen) and Demba Ba (Newcastle United) have all been monitored by Chelsea over the past 12 months.