ROGER Federer's pursuit of an eighth title remains on course after the No 2 seed enjoyed a four-set victory over Samuel Groth on Centre Court.

Federer beat the Australian 6-4, 6-4, 6-7, 6-2 - the first time this year he has dropped a set - and will play Roberto Bautista Agut, the No 20 seed from Spain, in Monday's fourth round.

Marin Cilic and John Isner resumed their epic battle on No 1 Court this afternoon after the match was suspended overnight with the score at 10-10 in the final set. As three of the four sets had gone to the tiebreak, a long battle seemed in prospect, but instead Cilic claimed a place in the fourth round with a 12-10 win..

Dustin Brown, who recorded the shock of the Championships so far when he beat Rafael Nadal in the second round, has been eliminated by Viktor Troicki of Serbia. The No 24 seed won in four sets.

In the women's third round, No 5 seed Caroline Wozniacki beat No 31 Camila Giorgi 6-2, 6-2 and next plays No 20 seed Garbine Muguruza, a three-sets winner over No 10 seed Angelique Kerber.

Agnieszka Radwanska, the No 13 from Poland, beat Australia's Casey Dellacqua in straight sets. And the No 21, Madison Keys, also won in straight sets against Tatjana Maria.