Manchester United boss Jose Mourinho has declared himself "on fire" ahead of today's Premier League opener against West Ham.

He let it be known he arrived at the club's training ground at 9.30 on Friday morning and worked flat out until the evening when he dashed back to his hotel to watch Arsenal beat Leicester, his busy day punctuated by a two-hour training session in the afternoon.

"I was not sitting around having tea," he says. "My dedication to my job is always the maximum, even more than when I started.

"At the end of the season we will see the results, but I look forward to it with optimism and enthusiasm. I want to play West Ham — a difficult match — then go to Swansea for another difficult match. I want the Champions League to start. I am on fire."