Wolves boss Bruno Lage is standing by his decision to go with a back four.
After four seasons playing five-at-the-back with former boss Nuno Espirito Santo, Lage believes his side have adjusted well to the transition.
“Everyone is doing a good job in the defensive line," Lage said.
“Since the first day of pre-season we have trained the line of four and how they coordinate. It's different to a line of five with the space and gaps between defenders being bigger.
“They need to run more distance and with a different tempo and I think they have adapted.
“I remember one game (in pre-season) and at half-time Max (Kilman) and done more runs at a higher intensity than he would normally do in 90 minutes, because it's different. To press you need to be higher up the pitch, which offers more space in behind. But, with time they have adapted very well.
“With time we can see that they are doing a good job."