It was a strange match between the players, especially in the first set where each fumbled leads. Medvedev opened the match better than most this week and he jumped out to an early lead against a shaky Mannarino. He lost his serve in the next game and it was 1-1. The Daniil failed to convert another break point and it was 2-2.
Medvedev broke his opponent once more for the 4-2 lead but fumbled it again with Mannarino making it 5-4. That was the last game the Frenchman won in the opening set as Medvedev won three games in a row to win the opening set 7-5.
The 2nd set looked a bit more like a typical grass-court match as both players were largely unbothered on their own serve. At 2-2, Medvedev got the break making it 3-2 and confirming it with a strong service game 4-2. From there it was largely cruise control for both until 5-4 when Medvedev approached the final game too casually. He rushed a few times too soon in a rally and he lost his serve.
It's not unusual for him to do that but it's something he could have avoided with more patience and focus. Mannarino then threw away his chance with several bad mistakes giving Medvedev the lead back which the Russian finally converted into a match win.