Manchester United midfielder Park Ji-sung feels he's returning to his best form.
Park was impressive in victory at Chelsea in midweek.
"It was frustrating to be injured just after coming back from the Asian Cup," he said. "The tournament wasn't great for me anyway so I was determined to come back and do well for United.
"Thankfully, I am back now but I realise I must play as well as I was doing before Christmas.
"I have confidence to do that.
"I have been six years at United and before Christmas I was putting in some of my best performances of my entire time at Old Trafford. I want to reach that level again."
