Derby County will face Newcastle United, Ipswich Town and Bristol City in the next fortnight.
Ibrox side Glasgow Rangers boss Mark Warburton signed 12 players in the transfer window, and one of them is relishing the chance to face the Bhoys.
Liverpool take on the Championship side in the League Cup later this month.
The Dutch striker played with Vlaar at AZ Alkmaar.
Rangers currently sit second in the Scottish Premiership table.
Adam Lallana and Jordan Henderson were named as surprise starters for the clash with Slovakia.
The Algerian international has reportedly ended his contract with Watford.
Alvaro Arbeloa has signed for West Ham, with Slaven Bilic explaining the move.
Tottenham Hotspur play Gillingham in the League Cup later this month.
Newcastle striker Dwight Gayle has been praised by Ruel Fox.