Beckham wrote on Instagram: Keep fighting Boss. Sending prayers and love to Cathy [Ferguson s wife] and the whole family.
Rooney was signed by Ferguson from Everton a year after Beckham s departure and went on to become United s all-time leading scorer after the iconic manager s 2013 departure.
He said on his Twitter account: Get well soon Boss. Thoughts with all the family at this sad time.
Get well soon Boss. Thoughts with all the family at this sad time.
— Wayne Rooney (@WayneRooney)
League Managers Association (LMA) chairman Howard Wilkinson joined the former United pair in offering support to Ferguson s family, while hoping for a speedy recovery .
His statement said: I was extremely sorry to hear the news about Alex this evening. I, together with the whole fraternity of football managers in the LMA, wish him well and hope for a speedy recovery from his surgery.
All our thoughts are with Lady Cathy and the rest of Sir Alex s family at this difficult time.