Flintoff has only just returned to action after a knee problemEngland all-rounder Andrew Flintoff is to see a specialist after suffering fresh problems with his left ankle.
He missed Sunday's one-day game against India at Headingley, but England hope he will rejoin the squad in time for the match at The Oval on Wednesday.
Flintoff underwent a third operation earlier this year.
But he experienced further discomfort following last Thursday's win over India at Old Trafford, having missed the previous game with a sore knee.
A team spokesman insisted on Saturday, however, that the two problems were unrelated.