Cardiff City’s bubble has burst and interim manager Omer Riza has admitted it did not deserve to float beyond Luton. The Bluebirds lost 1-0 at Kenilworth Road, popping a seven-game unbeaten run and inflicting a second defeat on Riza in his eight-game spell in charge. Whether the result affects his chances of being given the permanent manager’s job remains to be seen, but a slip back down to 21st place in the table – above the bottom three on goal difference – cannot have helped his cause.