Chelsea and England captain John Terry has had back surgery, his club said on Thursday.
The central defender, who has missed the last four matches for his club, underwent the operation in France following consultation between the Chelsea medical department and a leading neurosurgical specialist, Chelsea said on their web site (www.chelseafc.com).
"The operation to remove a sequestrated lumbar intervertebral disc was successful and everyone at the club wishes John a speedy and full recovery," Chelsea said.
The club, four points behind Manchester United at the top of the Premier League, did not say how long they expected Terry to be out of action.