Daniil Medvedev was a set up against Gaël Monfils when he angrily disagreed with two calls on the baseline and vented his displeasure at the line judge at the Monte Carlo Masters. Umpire Mohamed Lahyani twice came on court to check calls and calm down the Russian fourth seed. Medvedev was 40-15 up but lost his serve and then went 4-1 down in the second set before winning five games in a row to seal a 6-2, 6-4 success and progress to a last-16 meeting with compatriot Karen Khachanov. Medvedev was proved correct both times and after the game, when Lahyani said he would apologise, Medvedev replied: ‘How can you apologise, I lost the freaking game. How did I lose the game when it’s out? It’s out, it’s out.’