London, July 4 : Red Bull boss Christian Horner has said writing off McLaren driver Jensen Button's chances of winning the Formula One championship this seen would be foolish.

The McLaren ace is struggling through one of the worst patches of his career in a competitive car having finished only two of the last six races.

A haul of just six points of a possible 150 has had a distressing effect on his championship ambitions.

The 2009 F1 champion kicked off the year with a dazzling victory in the opening round in Australia, but since then has harvested more points in that one day than the last three and half months and seven races, and Horner believes it is very strange.

"It''s strange because at the beginning of the year he was the form driver, particularly on these tyres. His drive in Australia was very impressive then he was very quick in Malaysia and China. For whatever reason he has not been happy the last two or three races," The Daily Mirror quoted Horner, as saying.

"But it would be very foolish to underestimate him or write him off because he only needs to put two or three races together and he''s right back in it. He''s got the strength of character to do that. He''s got enough experience to deal with the mental side of it," he added.

"He has not suddenly become a slow driver. There is obviously something that isn''t right for him at the moment. As soon as he gets that sorted, for sure he will be a big contender. Remember last year he was seriously quick on numerous occasions," he said. (ANI)