Chelsea have huge faith in both Robert Sanchez and Djordje Petrovic. That is according to speculation this week. Chelsea have been very fortunate to own some elite goalkeepers over the years, namely Petr Cech and Thibaut Courtois. But there’s a bit more uncertainty nowadays in-between the sticks. Robert Sanchez, 26, has been the first-choice keeper at Stamford Bridge this season. His understudy Djordje Petrovic, 24, has still enjoyed plenty of minutes himself this campaign while Sanchez has missed the last month through injury. We’re doubtful that either have the potential to grow into world-c…