He said: "I don't consider myself a failure in English football because they have hardly given me a chance to show what I can do.
"If you don't get minutes then you can't be a success. Bolton hasn't seen the real Borgetti and I feel sorry for the fans.
"I don't have a problem with the boss. I am a professional and I respect Sam Allardyce and I haven't complained since I arrived.
"But what I want most of all is to play games in the run-up to the World Cup.
"It wouldn't be a problem if I went out on loan - I just need minutes.
"I'm excited about the World Cup and facing Portugal, Iran and Angola in our group, but I need to be playing before it."