Fabrice Muamba has announced his retirement from football
The Bolton midfielder suffered a cardiac arrest on the pitch during an FA Cup at Tottenham tie in March -- and says he has to put his health first.
Muamba thanked the medical staff who saved his life after his heart stopped for 78 minutes.
He says he's been overwhelmed by support from the public and is devastated his career is over - but told his fans to keep smiling.
Despite having an operation on his heart last week - doctors have advised him that playing top-level football is not worth the risk.