Beckham made his first appearance for PSG as a second half substitute in the 2-0 Ligue 1 home win over Marseille on Sunday.
The former Manchester United and England midfielder -- who opted for Paris ahead of numerous other offers after the end of his contract with Los Angeles Galaxy in America's Major League Soccer -- could once again face countryman Joey Barton, who played for Marseille on Sunday.
"He will start tomorrow. Beckham can play the whole match," Ancelotti told a press conference.
The 37-year-old, who has also played for Real Madrid, did enough to prove to Ancelotti with his performance on Sunday -- when he played a part in the second goal after coming on as a 76th minute substitute -- that he is ready to start a game.
"He will play instead of Verratti. This is an important position on the field, it will help the team in building the game and have good positioning. He can play a whole game," Ancelotti added.