Celtic are reeling from the news that striker John Hartson will miss the rest of the season through injury.

The Scottish Premier League leaderslost Hartson for the closing weeks of last season due to a back injury and the Welshman’s new problem is very similar.

The former Arsenal striker is set to undergo an operation later this week.

The injury is set to sideline Hartson for four months and means he will miss the rest of domestic campaign as well as Celtic’s UEFA Cuup campaign.