"I will see a specialist on Monday and get an opinion on my right knee," Vaughan said after his Ashes-winning side lost a three-Test series 2-0 against Pakistan on Saturday.

Vaughan, 31, suffered the injury during a warm-up match which forced him to skip the first Test at Multan last month.

England lost the first Test by 22 runs and drew the second at Faisalabad before being thrashed by an innings and 100 runs in the final match here.

This was England's first Test series defeat after winning six in a row, including the Ashes against formidable Australia in September, under Vaughan's captaincy.

The England team management said if Vaughan needed an operation he might not return for the five one-dayers against the hosts and opener Marcus Trescothick would lead the side.

Left-arm spinner Ashley Giles and opener Andrew Strauss will also miss the one-day series for different reasons.

England have summoned all-rounder Ian Blackwell and paceman Kabir Ali and put batsman Ian Bell on standby in case Vaughan fails to return for one-dayers.

Batsman Vikram Solanki has joined England's one-day squad.