Ole Gunnar Solskjaer has challenged his Manchester United players to "work harder" - and warned them against complacency because they will "never last at this club".
The former United striker was named the club's permanent manager on Thursday, having arrived on an interim basis in December to replace Jose Mourinho.
Under the Norwegian, 46, United have lost only once in 13 league games.
"We are looking forward, we have got to work harder," Solskjaer said.
"I want a Man Utd team to be one of the hardest working, fittest teams and that will bring results.
"Now the players know I am here for longer than expected. Players that get complacent never last at this club."
Speaking at Old Trafford after signing a three-year contract, he described the position as his "ultimate dream", and revealed Sir Alex Ferguson was one of the first people he called after his position was made permanent.
"This has been my ultimate dream, maybe a naive dream," he said. "But I've always had that dream in my mind.
"It's a huge, fantastic family of a football club and I'm so honored to be given the responsibility."