Media accreditation was needed for Beckham's first training session at St Germain's Camp des Loges on Wednesday with 150 reporters turning up to watch.
Ancelotti's news conference on Saturday at the Camp des Loges will also be open to accredited reporters only as the club struggles to adapt to life with one of the world's leading sports celebrities.
Olympique Lyon, who play Girondins Bordeaux on Sunday, have leaked six goals in their last two Ligue outings and they will be without playmaker Yoann Gourcuff who has been suffering from a groin injury and could be out of action for up to three weeks.
Third-placed Olympique Marseille, trailing PSG by eight points, need to revive their campaign, said defender Nicolas N'Koulou ahead of their home game against Valenciennes on Saturday.
"Everybody has been doing a little less than in the beginning of the season," the Cameroon centre back told the club's website (www.om.net). "It is a must-win game if we want to hope for a good season."
Olympique Marseille lead fourth-placed St Etienne, who travel to Stade Reims on Saturday, by only three points as both teams battle for a Champions League playoff spot.
- Sports & Recreation
- Olympique Marseille
- David Beckham
- Carlo Ancelotti
- Olympique Lyon
- Mamadou Sakho
- Thiago Silva