Alexander Zverev off the mark with a win against Marin Cilic
Alexander Zverev overcame a sluggish start to beat Marin Cilic in his opening round-robin match at the 2018 ATP Finals.
The world No 5 found himself 3-0 down in the first set, but eventually found his rhythm and secured a 7-6 (7-5), 7-6 (7-1) win over former US Open winner Cilic in just over two hours.
Super Sascha! 🙌
— Tennis TV (@TennisTV) November 12, 2018
Zverev broke back in game nine of the opening set and, after squandering a couple of set points in the tie-breaker, he eventually took the set in one hour and five minutes.
Cilic again had the initial advantage in the second set as he broke in game seven, but the German hit back in the very next game to draw level and then dominated the tie-breaker.
World No 1 Novak Djokovic will take on John Isner in the second match in the Guga Kuerten Group in the evening session at the O2 Arena in London.
More from Tennis365:
Breakthrough moment for Hubert Hurkacz as he claims maiden Masters victory at Miami Open
Hurkacz will climb to 16th in the world rankings after his 7-6 (4) 6-4 victory.
Strong suggestions the French Open could be rescheduled for second year running
The tournament was moved to October in 2020.
Ashleigh Barty wins Miami Open again as injured Bianca Andreescu retires in final
Ashleigh Barty wins Miami Open once more as injured Bianca Andreescu retires in final.
The changing faces of Andy Murray as his new Castore clothing range is unveiled
Andy Murray is set to wear his latest Castore clothing range in the clay court season.
Jannik Sinner joins an elite list of tennis greats as he reaches the Miami Open final
Jannik Sinner is through to his first career ATP Masters 1000 final after defeating Roberto Bautista Agut.
‘People told me that I would never play tennis again’ – Petra Kvitova’s emotional interview
Petra Kvitova has opened up on a story that has pushed her to the emotional brink.
WATCH: Novak Djokovic steps up preparations for clay court season in Monte Carlo
World No.1 Novak Djokovic is stepping up his preparations for the clay court season.
Stefanos Tsitsipas is beaten as Miami Open prepares to crown a new champion
Hubert Hurkacz fought off two match points to grind past Stefanos Tsitsipas in Miami.
Ashleigh Barty impresses in Miami as she eases into another final
Top seed Ashleigh Barty is back in another Miami Open final after beating Elina Svitolina 6-3 6-3.
Patrick Mouratoglou backs Serena Williams for French Open glory, saying ‘she can win any Grand Slam’
Williams continues her search for a 24th Grand Slam.