Chelsea at centre of row with Nottingham Forest over defender Sam Hutchinson's fitness The 23 year-old, who retired in August 2010 after injury before returning 18 months later, was sent back to Chelsea in September for an injection in his left knee and told he would be back playing in a fortnight. But Hutchinson has been unavailable for 15 games and is not expected to feature in Sean O'Driscoll's plans until the end of the year. This lay-off wasn't caused by an injury but by an injection that was quite intrusive and although it will have long-term benefits in the short-term it has proved problematic, which is not what I needed as I was desperate to play games. Hutchinson retired at the age of 21 after persistent problems with his right knee but following a significant improvement in the condition of the joint he returned to make two Premier League appearances for Chelsea last season. He signed an 18-month contract at Stamford Bridge before joining Forest on a season-long loan. Chelsea have declined to comment.