We haven't seen much of Petr Cech since the goalkeeper injured his shoulder during the Champions League semifinal, but two and a half months after his surgery he's apparently fit enough to travel with the rest of the squad as they get set to make their pre-season tour of Europe:
He [Cech] is making very good progress and working as you would expect for a guy as professional as he is. He is working ahead of schedule with [goalkeeper coach] Christophe Lollichon, not quite full goalkeeping work but he is well on course and hopefully it will not be too long before he can join in full-time training.
-Steve Holland. Source: ChelseaFC.com
It's not yet clear whether Cech will actually be able to play in any of the games as the Blues amble around the continent, but that he's close enough to be under consideration is enormously encouraging. Even if Thibaut Courtois is making his return to Chelsea this season, Cech is still a phenomenally valuable asset both between the posts and in the dressing room, and having him up to full speed would be very handy indeed.
The squad will also be joined by three new signings and the Chelsea players who were knocked out in the World Cup group stages matches -- Fernando Torres, Cesar Azpilicueta and Gary Cahill will all be back, and we'll get to see Diego Costa, Cesc Fabregas and Filipe Luis for the first time. The team's starting to take shape!