Vice-President Atiku Abubakar was on Monday expected to undergo a minor surgery to reattach a torn ligament on his knee.
The surgery, to be performed by doctors at London Bridge Hospital, was scheduled for Monday evening.
A statement by the Media Consultant to Abubakar, Mallam Garba Shehu, said that Abubakar would undergo the surgery at 9 pm Nigerian time.
The surgical team is being led by Dr. Evans and it includes the vice-president�s US doctor, Dr. Paul. The surgery is expected to last 90 minutes.
Shehu, in the statement, said that the vice-president was in good condition and �he is optimistically looking forward to the surgery and his early return to Nigeria.�
Abubakar was flown to the United Kingdom on Sunday aboard a presidential jet after sustaining an injury in a domestic accident.
The vice-president had gone to a gymnasium at his residence in Abuja at about 12.10pm for a work out. However, mid way into the exercise, he tripped on one of the machines he was using.
After an initial treatment at Aso Rock Clinic, where he had an x-ray, the result showed that he had broken his knee tendon.
The Action Congress, of which Abubakar is the presidential candidate in the April poll, in a statement on Monday, however, said Abubakar, would return to Nigeria by Wednesday.
�We expect the vice-president back by Wednesday after the minor surgery to resume his campaign,� the party said in a statement by its National Publicity Secretary, Alhaji Lai Mohammed.
It said Abubakar would not have travelled out for such a minor surgery in the first instance if the Aso Rock Clinic had the equipment to repair the torn ligament.
The party described the release of a presidential jet to fly Abubakar to London for treatment as �a right and not a privilege.�
It said he had accepted the offer in the �spirit of politics without bitterness.�
It said although a court ruling directing that he should be given all his entitlements was not fully respected, the vice-president had accepted the offer by government to foot his hospital bill too.
It said after the incident, an independent arrangement was made for a chartered aircraft to fly him to London for routine surgery, �after the doctor at Aso Clinic had said there was no facility to carry out the surgery.�
AC said President Olusegun Obasanjo got to know about the injury when he was informed by his Chief of Staff, Lt-Gen. Abdullahi Mohammed, who was contacted to help arrange for a landing clearance for the private jet booked to fly the vice-president out.