Lewis Hamilton says he isn't concerned by comments from Red Bull boss Christian Horner suggesting the team saw Jenson Button as a bigger threat during the year ahead.

In an interview with the BBC, Horner had suggested that Button was more of a threat to Red Bull pair Sebastian Vettel and Mark Webber in 2012; with the 2009 title winner having finished second to Vettel in the standings last season.

However, Hamilton said he wasn't worried by Horner's comment - or those of anyone else - arguing that he was just focused on the job at hand and not concerning himself with what others were predicting about the season ahead.

"They definitely don't wind me up," Hamilton told the BBC when told of Horner's comment. "There are a lot of opinions, and everybody has their right to an opinion, but it doesn't really affect me. It doesn't really matter at the end of the day when I go out and do the job."

Last season marked the first time that Hamilton had been beaten by a team-mate since joining the F1 grid back in 2007, but he said he wasn't concerned about the fact given the way in which his campaign panned out.

"Losing to Jenson didn't really bother me," he said. "If it had been a case where we had been fiercely competitive throughout the year it would have been quite tough to deal with.

"But knowing it was a year where I threw away points, made very silly mistakes - sometimes a little unfortunate, but it was just a shocking year - I wasn't really too devastated by it. I've drawn a line under it because at the end of the day he didn't win the world championship, so it could have been even worse.

"But there are still many years ahead, and I don't plan on [what happened in 2011] being the case this year."