Medvedev into Marseille final as Ebden limps out
The top seed and world number three will face a French foe in Sunday's final, the winner between Pierre-Hugues Herbert and Ugo Humbert playing later Saturday.
World number 287 Ebden left the court for a medical timeout after the first set, returning but with his movement clearly compromised.
"He's had a dream week with this semi-final from qualifying.
"And today, up to his injury, he was almost playing better than me."