Second seed Marin Cilic of Croatia and fifth Seed Juan Martin del Potro are safely through to the fourth round of the Miami Open tennis tournament.

However, the tournament, with world number one Roger Federer already ousted, lost another top ranked player. France’s Jeremy Chardy took down Bulgarian third seed Grigor Dimitrov 6-4, 6-4.

It was only Chardy’s second victory over Dimitrov in seven years and he next plays Canadian Milos Raonic.

Sixth seeded South African, Kevin Anderson, will play his third round match later Monday evening.

He takes on 32nd seed Karen Khachanov of Russia for a place in the last 16.