Norwich City midfielder Isaac Hayden has spoken out about his injury issues, revealing that he's had further knee surgery and has trained sparsely during his time in Norfolk.

Hayden was absent from the Canaries' 1-0 defeat to Watford on Monday, with interim coach Allan Russell refusing to discuss his situation and claiming he hadn't "been himself" in recent days.

Hayden has confirmed via his Twitter account that referred to a second knee procedure of the season, saying: "Medically and ethically I had to stop as of the weekend as it was no longer sustainable. I just want to thank Mr. Tim Spalding for the procedure to fix the long-term problem."

He also discussed the struggles he's encountered with the knee issue, after missing the first 15 games of the season and seeing his time in training limited.

"Ever since coming back from the last injury, it's not been 100pc fixed," he continued. "Having to aspirate my knee of 50-60ml of fluid every three days to be available for games, training twice a week in order for my knee not to swell to the point where I couldn't play on match day.

"It's been a soul destroying feeling, not being able to play like the player I was a year ago and the player ultimately the club signed, but nobody more so than myself is frustrated at the cards I've been dealt since joining Norwich City on loan. Nobody could have foreseen it, but that's football at its most ruthless. 

"I accept criticism of my performances in games from media/fans etc. I'm big enough to take it, but when people question my character/mentality, or if I want to be at the football club and give my all to it, I will not accept that.

"The extent myself and the medical staff have been to over the last few months to get me simply available has been above and beyond.

"I look forward to working with the new management staff the club employ and focusing on trying to achieve the aim of promotion, which is very much still possible. See you soon."