Manchester United boss Ralf Rangnick insists he's looking forward to working with Cristiano Ronaldo.

At his first media conference as United manager, Rangnick only had positive things to say about CR7.

"You always have to adapt to the players you have available," the German says.

On Ronaldo, he adds: "I have never seen anyone as fit at 36.

"But it's not just about him, it's about developing the squad as a whole."

He also said: "You can only go game by game, step by step. When I came to other clubs in the middle of the season you have to make sure you have the biggest chance to win the next game.

"The players have to follow the instructions and buy into the idea I can offer them of how we should play in the future. It cannot be done in one or two days."

Rangnick was also asked about United's journey in the years following Sir Alex Ferguson's departure.

"It's not unusual that after a long successful spell, the club needs to find a new path," Rangnick says.

"The club has had no continuity in signing new players and sticking to the club's DNA. In the future the board members and my self have the same opinion. It's important not to have many changes in management."

On the potential for new signings to arrive in January, he said: "We haven't spoken about new players.

"Now is the time to get to know the current squad. There is enough players. Maybe after Christmas there will be a time to talk about possible transfers in the winter. In my experience, it is not the time for sustainable transfers."