The Spaniard could not display a good performance at Roland Garros, nor has she made any great bounds on grass so far.
Sakkari, who is seeded fifth in the competition, will be one of the top players heading onto the legendary grass courts.
Anett Kontaveit will face American tennis player Bernarda Pera in the first round of the competition to get her campaign underway.
Ever since she became the US Open champion, Raducanu has not been able to make a mark in world tennis.
Tsitsipas was beaten in the quarter-final of the Stuttgart Open by a spirited Andy Murray and was ousted at Halle by Nick Kyrgios in the round of 16.
Van Rijthoven beat second seed Auger-Aliassime in the semis and finally top seed Medvedev in the final of the Rosmalen Championships.
Carlos Alcaraz has won two ATP 1000 titles already this season, namely the Miami Open and the Madrid Open.
The 40-year-old has only just gotten back to the game, reaching the semi-final of the Eastbourne International in the doubles category alongside Ons Jabeur.
In her career, Swiatek has only competed in Wimbledon twice and has never gotten through to the quarter-final stage.
Andy Murray displayed an outstanding performance at the 2022 Stuttgart Open where he reached the final after Tsitsipas and Kyrgios.