Wales have added Tottenham's Joe Rodon to their squad for Wednesday's World Cup qualifier against Estonia.
Centre-back Rodon, 23, had been missing because of an unspecified injury which has prevented him from playing a single minute for club or country this season.
Wales had hoped Aaron Ramsey may also join the squad, but the midfielder has not recovered from a thigh problem.
Without Rodon, Wales looked shaky defensively in Sunday's 3-2 win against Belarus in Russia.
The former Swansea City defender is an important first-team player when fit and has 18 Wales caps.