Wimbledon 2017, Day 5: Marin Cilic reaches fourth round without dropping a set, Kei Nishikori beaten

London: Seventh seed Marin Cilic swept into the fourth round at Wimbledon with a 6-4 7-6(3) 6-4 win over American Steve Johnson on Friday to end an imperious opening week with a third consecutive straight sets victory. But his 2014 US Open final opponent Kei Nishikori was beaten by Roberto Bautista Agut.

The big-serving Croat took his aces tally to 63 for the tournament as he ended Johnson`s Wimbledon run and underlined his own status as one of the main challengers to the established favourites.

Cilic, the 2014 U.S. Open champion, is one of only two people, alongside Stan Wawrinka, to have won a grand slam in the last seven years outside of the game`s dominant quartet of Roger Federer, Rafa Nadal, Novak Djokovic and Andy Murray.

Having reached the final at Queen`s in the traditional Wimbledon warmup, his grasscourt game is in good shape and he eased past Johnson with minimum fuss.

The Croat took the first set when he broke in the 10th game and claimed the second in a tiebreak

After both players struggled to hold serve at the start of the third, Cilic took control before wrapping up the contest when the American dumped a forehand return into the net.

Next up for Cilic is Roberto Bautista Agut, who reached the fourth round with a shock victory over Japanese ninth seed Kei Nishikori.

Spain`s `Mr Consistent` Roberto Bautista Agut reached the fourth round of a grand slam for the seventh time in his last nine attempts with a shock victory over Japanese ninth seed Nishikori.

The 29-year-old proved too solid for a listless Nishikori, winning 6-4 7-6(3) 3-6 6-3 on Court Three.

"I could not get into my rhythm," Nishikori told a large gathering of Japanese reporters.

"It was really hard for me to be aggressive today. In the third set I began to move him around a bit but it didn`t last long enough unfortunately. I totally lost my rhythm out there."

It has been a mediocre year for Nishikori who is struggling to build on the promise he showed when he reached the 2014 U.S. Open final, losing to Marin Cilic.

After reaching the final in two of his first three tournaments of 2017 he has not made one since and has been suffering with niggling injuries.

On Friday he paid the price for failing to take his break point chances in the first set, especially at 4-4 when Bautista Agut saved one with a crisp forehand winner.

The Spaniard broke in the next game to take the opening set.

It was a similar story in the second set with Nishikori unable to convert any of the five break point chances that came his way before succumbing in a tiebreak in which Bautista Agut reeled off the last four points.

Nishikori, who has never flourished on grass and is yet to go past the fourth round at Wimbledon, did briefly gain the upper hand as he took the third set.

When he broke at the start of the fourth with a running forehand pass, to the delight of his fans, it seemed the match could swing his way but it proved a false dawn.

Eighteenth seed Bautista Agut belted a forehand winner to break back for and delivered another hammer blow to move 5-3 ahead before sealing victory as Nishikori skewed a backhand out.

Bautista Agut will face stiffer opposition on Monday when he plays Croatia`s seventh seed Marin Cilic.