The former England international was signed by the French giants on the last day of the transfer window and, despite being 37 years old, the former Milan boss is certain his qualities will help PSG in their search for silverware this season.
However, in a word of warning, Ancelotti has declared that Beckham will have to earn his place in his starting XI.
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"He was on holiday but he has already started to train. But he still needs two weeks to be in good physical condition. After, we will see what happens.
"If he deserves to play, he will play. He can play as a defensive midfielder, or right flank. But he needs to have the merit to play.
"I am very happy with his arrival because I know him very well. He will bring professionalism and has a serious attitude. The team will improve with him. I have no doubt about it. He has a lot of character and for a coach to have a player like him it makes the job easier."
After being without a club since December, Beckham signed a five-month contract with the French capital side and will donate his entire wages to an unknown local children's charity.