British boxer Amir Khan believes fighters would be wrong to dismiss his ability as he looks to recover from consecutive defeats.
The 25-year-old will face Carlos Molina in Los Angeles on December 15 following losses to Lamont Peterson and Danny Garcia and, although Khan will not under-estimate his unbeaten American opponent, knows he needs to win to silence his critics.
He said: "When the fight was put to Carlos Molina he jumped at the fight because a lot of fighters will now think Amir Khan's confidence will not be the same.
"But this is the time when I have to prove myself and I will prove myself come December 15. One thing I have never done is taken any fight lightly.
"It has not been a good year, having two defeats. I just have to come back strong and mentally I'm prepared and there aren't going to be any more mistakes.
"All unbeaten fighters are dangerous, I know he is going to be up for this fight because it is a step up for him.
"In a way it is a step up for me because coming back from a defeat I have to win this fight in good fashion."
The former WBA and IBF light-welterweight champion has split from former trainer Freddie Roach and will work with Virgil Hunter for the Molina fight.
He said: "I'm going to be training a hundred times harder than I've ever been training and this big change is going to help.
"Being a young and hungry and aggressive fighter we do make a lot of mistakes and I put my hand up, in the last couple of fights I have made mistakes and I will come back from it stronger
"When I lost my first fight to (Breidis) Prescott, the way I came back from that was making all my own decisions.
"I sat down with the team and did the same thing again - I need to be happy in a camp and I need to be the boss."