Chelsea goalkeeper Petr Cech is gutted for teammate Didier Drogba after his knee setback this week in Transylvania.

"The saddest thing is that Didier just overcame an injury, so it will be difficult for him," the goalkeeper said. "The difficulty when you're out for a long time is always a mental one because you want to be on the pitch and you can't, then you need to work to get back your fitness and it takes time. You need to be patient."