Manchester United boss Ole Gunnar Solskjaer has fresh confidence in his players thanks to their improved fitness.
United out-ran Chelsea in their 4-0 win at Old Trafford to kick off their Premier League campaign, with Solskjaer having forced his players to up their fitness levels over the summer after a chance in approach.
"There's a big shift in difference from the teams," said Solskjaer.
"Chelsea out-ran us quite a lot in April, now we've outran them, so that's a good shift for us.
"But it's not just about fitness. Fitness is important, but with a young team you expect loads of energy, but we also have quality.
"It's a big period still for us, is still more or less pre-season.
"We've got a couple more weeks after this that we can put loads of work in on the training round, because after international week it's too busy.
"We've had a great weeks in training, the mood has been good and it's been competitive.
"There were some players not involved in the last game and they want to prove a point."
