Sebastian Vettel said Saturday he is not concerned after being criticised of his Ferrari team principal Maurizio Arrivabene, as dpa reported. "I have a good relationship with him. If I don't like something I tell and vice versa," Vettel said at the Japanese Formula One Grand Prix. Vettel added "it is not as bad as it seems" after Arrivabene had suggested in a television interview that Vettel should concentrate more on his driving than on a contract extension beyond 2017. "He must only concentrate on the car. Sometimes we have to remind him," Arrivabene said. "Everyone of us has goals. But it is only just that everyone, regardless who he is, must earn his place and his salary." Vettel, 29, won three races in his debut season with Ferrari 2015 but is yet to top a podium in the current season. He has not tasted victory in 22 races, the longest winless run of the career of the four-time world champion. "We have high expectations in ourselves. If we don't meet them we are the first to kick ourselves," Vettel said.