The 20-year-old has been promoted from the Under-21s, who are due to play Northern Ireland in Ballymena on Tuesday.That call-up follows the withdrawal of West Ham's Collins from the squad due to travel to Portugal for the game against the Poles in Vila Real St. Antonio on Wednesday.Williams has just signed a new four-year contract at Middlesbrough, and is currently on loan at Burnley.
Source: Team_Talk