Sheffield United midfielder John Fleck says the key to their success so far this season is team spirit.

Fleck joined United following Wilder's appointment in May 2016, and has since won promotions from League One and the Championship.

He told The Star, "In League One we seemed to have a lot of days off as a group, we can't do that as much now.

"There will always be time to enjoy yourselves as a group but the standards have to be a little bit higher, as when the manager brings in new players. It's just acclimatising to everything really to get better."

"I well understand there's going to be times in the season where we're not in form but we've just got to keep working as hard as we can to keep it going," he added. "It's just about being better at everything we do, in training and off-the-field stuff."