Paul Lambert insists his players are in for an "extremely tough" week in Germany.
Lambert says it's a case of work, work, work as the manager aims to build up fitness levels and get the team into a pattern of play for the coming term.
He's a strong believer that an enormous effort in pre-season is vital in order to get the body right for the strenuous rigours of a Barclays Premier League campaign.
Lambert is relishing the three games - SV Rodinghausen on Wednesday, SC Paderborn on Friday and VfL Bochum on Sunday.
But the boss stresses that training each day is of paramount importance.
He said: "We've headed to Germany and it will be extremely tough, especially if the weather gets the way it could go.
"There will be three difficult games out there too.
"But the priority for us is to work.
"It is not a resort where you think the lads go to enjoy themselves. It is to work and if they do that and do it really hard and keep it going then they'll come back to England and they've got games here which will stand them in good stead.
"The main thing for us is we don't get any injuries first and foremost, get into a way of playing and be ready for that first game.
"You've got to be fit.
"Modern day football dictates that you have to be fit to get around the pitch which is important.
"You've got to be fit to play a really tough season plus cup games and everything that goes with it.
"Fitness is important in football, there is no doubt about that."
Snap up some of the trainingwear the lads will be wearing in Germany.