8pm: Almost time
We’ve just seen the end of the doubles match with Kubot and Melo defeating Dodig and Polasek 4-6 6-4 10-5.
The singles is next up with Federer and Thiem going head to head.
Go make yourself a cup of tea, grab a biscuit and then return.
This is one you do not want to miss.
7.45pm: Live stream details
We will have all the updates you need right here, but you can watch the action live on Amazon Prime.
This year, Prime Video have broadcast on-site, live studio coverage across tournaments, including at the BNP Paribas Open from Indian Wells, the Fever Tree Championships from The Queens Club, the US Open, and the Nitto ATP Finals from The O2.
On-site field reporters will bring customers the latest action, analysis and commentary right from the court side at many tournaments.
In addition to 37 ATP Tour events and the US Open available exclusively on Prime Video with a Prime membership, Prime members in the UK who subscribe to Eurosport Player through Prime Video Channels for an additional £6.99 per month (following a 7-day free trial) will also benefit from full coverage of the French Open, and daily highlights and live coverage from the men’s and women’s finals of Wimbledon in 2020.
7.30pm: Federer on record trail
Roger Federer is the oldest player to qualify for the ATP Finals.
But he is the record-holder for titles (6), finals (10), semi-finals (15), appearances (17) and wins (57).
And he is looking for 104th trophy overall this week as he continues to chase Jimmy Connors’ record 109.
“Of course it would be nice. I’m not the only guy who has that hope and that dream,” Federer said. “We’ll see how it goes.”
7.15pm: Thiem warning
Though Dominic Thiem only won five games against Federer last year, he’s warned that he’s in better form this time around.
Thiem said: “The first two years it was just so nice to be here even and last year I wanted to be in the semi-finals badly, but I didn’t play that well.
“I think I’m playing way better this year, but the level is so high, it’s the eight best guys of the season, so it can also happen that I play three very good matches and I lose three of them.
“There is no guarantee for nothing but I’ll try my best and hopefully I can make it to the semi-finals for the first time.”
Hello and welcome to Express Sport’s live coverage of Roger Federer vs Dominic Thiem.
Novak Djokovic got his Group Bjorn Borg campaign off to a perfect start beating Matteo Berrettini 6-2 6-1 earlier and Federer will be hoping to do the same against Thiem.
The Swiss star doesn’t have the greatest record against Thiem though, trailing their head-to-head 4-2.
But he may take hope from the fact that his last win over Thiem came at the O2 this time last year.