Russian Medvedev, who has won nine matches in a row, beats Spanish Nadal, world number two, 3-6, 7-6 (7/4), 6-3 during their ATP semi final match.
Rafael Nadal inflicts humiliating defeat on Novak Djokovic, thrashing the world number one 6-0 6-2 7-5 and equalling Roger Federer with 20 Grand Slam titles.
Novak Djokovic faces claycourt king Rafael Nadal in a dream French Open final on Sunday with more at stake for the world's two top-ranked players than another Grand Slam title.
World number one Novak Djokovic, the 2016 champion at Roland Garros, reached his fifth final in Paris, defeating fifth seed Tsitsipas 6-3, 6-2, 5-7, 4-6, 6-1.
The Serb now sits two wins away from becoming the first man in half a century – and only the third in history – to win all four Grand Slams twice.
Novak Djokovic will now face Karen Khachanov in the fourth round at Roland Garros.
World number one Novak Djokovic, returning to Grand Slam action for the first time since his US Open disqualification, eases past Sweden's Mikael Ymer, ranked 80, in straight sets.
Up to 1,000 spectators have been allowed by the Italian government to be present at the final two days of the tournament in Rome.
World number one Novak Djokovic is sensationally disqualified in fourth round after striking a female line judge inadvertently with a ball following a point during a match against Spain's Pablo Carreno Busta.
Novak Djokovic extends an undefeated run in 2020 to 25 matches as top-seeded Karolina Pliskova was stunned in straight sets by France's Caroline Garcia, the world number 50.
The 29-year-old Bulgarian tennis player had been competing in the Adria Tour exhibition tournament in Croatia until he withdrew as he fell ill during the weekend.
All professional tennis tours were suspended in early March and will not return before August as countries went into lockdowns and closed borders to contain the spread of the novel coronavirus.
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