Bob Harris has revealed pre-season training gets no easier, despite the players being delighted to see the footballs out from day one.
Harris and his team-mates began their work at Shirecliffe this week, having started pre-season at Sheffield Hallam University and Champneys Springs, but the left-back insists it has been tough testing throughout, regardless of the surroundings.
The Scotsman, who got married during the close season, remarked: "Each morning when you wake up you feel a bit stiff but you know another tough day is ahead, that's just part and parcel of pre-season, though, we are experienced enough to know we are back at work now after several weeks of downtime.
"The one thing we can't complain about is the amount of football-specific work we are doing, yes it is tough, but all the lads smiled at each other when we ran out on the first day and saw the balls out."
Giving his conclusion to the events of last season, which saw Nigel Clough depart Bramall Lane in the summer, Harris added: "It was a surprise to everyone, but we had an ambition of getting promoted last season and despite a terrific cup run, we fell agonisingly short.
"We had a target and we missed it, so we have to take responsibility too. The disappointment from last season has gone now, though, and we are focused on having a fantastic opportunity to win promotion this time around."