Jose Mourinho has told Spanish television that he expects to be appointed Chelsea manager by the end of this week.Former Chelsea star Arjen Robben, who won two league titles at Chelsea, thinks that Mourinho can replicate that success on his return. "It's a big move for Chelsea with Jose coming back but I know it is one the fans will welcome," the Bayern Munich winger told The Sunday People. "He had very successful years at Chelsea and he can have them again. "The thing about Jose is that he will win at any cost; he doesn't care how, he just wants to win. "I've not always been supportive of the style of football he plays, but he is a winner who has achieved great success. I am sure that with some big signings from the owner that Jose and Chelsea can rule England again." His former team-mate Frank Lampard sealed a new contract at Chelsea last month and Robben believes it could be down to Mourinho's homecoming. "It is no surprise to me that Frank is now staying. It cannot be for football reasons that he was going because he is still one of the best. It must have been a personal thing with the old coach," he said. "As soon as it became clear Jose would return, there was never any chance Frank would go because there is such respect and a friendship between the two of them. "He sent me a text after we won the final, that is the sort of classy guy Frank is."