The France international has shown tremendous character to put his own health troubles aside and offer the Bolton Wanderers midfielder his public support
The pair have been the subject of much support from football fans around the world and Abidal, who is set to undergo a liver transplant, found the time to wish Muamba well.
The France international wrote a message on his official Facebook account: "Fabrice Muamba, all my heart is with you and your loved ones! We're with you and your family!"
Muamba continues to recover at The London Chest Hospital. Although he remains in intensive care, Bolton has confirmed on their official website that the 23-year-old is now able to breathe independently without the aid of a ventilator and he is able to recognize family members.
There is no date set yet for Abidal's liver transplant operation as he continues to participate in Barcelona's training sessions.