Hwang Hee-chan, Sasa Kalajdzic, Fabio Silva and Pablo Sarabia all went close with second-half chances for the home side.

Elijah Adebayo twice had the ball in the net for Premier League newcomers Luton, but his two efforts were both disallowed - one for offside and the other for a foul on Wanderers goalkeeper Daniel Bentley.

The Hatters are scheduled to host Wolves in the first of their two league fixtures on Saturday, 23 September.