Kei Nishikori makes statement of intent against Stan Wawrinka at the ATP World Tour Finals

Kei Nishikori gained sweet revenge over Stan Wawrinka at the Tour Finals on Monday

Kei Nishikori produced some impressive tennis to beat Stan Wawrinka in a rematch of their US Open semi-final on Monday at London's O2 Arena.

World No 5 Nishikori lost their Flushing Meadows battle earlier this year and had lost four of his six meetings with Wawrinka going into their latest clash at the ATP World Tour Finals.

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But Nishikori, who made the semi-finals of the Tour Finals in 2014, found the speed of the court to his satisfaction to secure a 6-2 6-3 win in the John McEnroe group that also contains world No 1 Andy Murray and Marin Cilic.

Shots of the match

Nishikori was at full stretch, but somehow kept his racket head steady to power back an angled volley winner during a dominant opening set. Described by Sky Sports tennis analyst Mark Petchey as "arguably the hardest shot in tennis to hit a winner off".

Third-ranked Wawrinka wasn't to be outdone though and struck this flashy forehand winner using an open stance, big lunge with no forward movement to his body weight. It was all arm with little hip rotation. That's what made him a three-time Grand Slam winner.

Expert analysis

The match

US Open champion Wawrinka, wearing tape around his knee, felt intense accumulative pressure from Nishikori, who made the breakthrough at the fourth time of asking, with some trademark ball-striking from the baseline to take a 3-2 lead.

The Japanese star held serve before breaking for the second time by taking advantage of some inconsistent serving by Wawrinka.

Nishikori served up 11 winners in 29 minutes of dominant tennis.

Nishikori's impressive second serve return placement during a dominant opening set against Wawrinka

Some jaw-dropping forehands, with length and pace kept Wawrinka at bay in the next and he soon moved ahead with a somewhat lucky break in the fifth game after his blocked return dropped tantalisingly over the incoming Swiss and found the baseline.

Wawrinka opened the door in ninth game to hand Nishikori his first match point, which he took with aplomb, forcing his opponent into another unforced error - his 31st of the match - to seal victory in 67 minutes.

Check our game-by-game coverage from all group matches at the ATP World Tour Finals in London - including Andy Murray - on skysports.com/tennis, our app for mobile devices and iPad and our Twitter account @skysportstennis.

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