Where is Roger Federer vs Marin Cilic taking place? 02 Arena, London
When is Roger Federer vs Marin Cilic on? Thursday 16th November, 2017
What time does Roger Federer vs Marin Cilic start? 14:00 (UK)
What channel is Roger Federer vs Marin Cilic on? BBC Two / Sky Sports Main Event
Tournament favourite Federer confirmed his spot in the semi-finals with a hard-fought victory over young rival Zverev with his position secure regardless of the outcome here.
The Swiss dominates Cilic in career meetings having won seven of their eight encounters, including a straight sets victory in this year's Wimbledon final.
Federer may relax a little given the circumstances but he is still a heavy favourite and has the added motivation of moving closer to Nadal in the world rankings going into 2018.
Cilic's qualification hopes were ended after defeat to Jack Sock in the second round of matches, once again losing after being 3-1 up in the deciding set.
Although having nothing to play for, the Croat will be keen to put in a good showing against the six-time champion and end his season on a positive note.
He has lost seven times to Federer but he does at least have the memory of a straight sets victory over his opponent on hard courts, that coming in the 2014 US Open semi-finals.
Roger Federer and Marin Cilic have met on eight occasions with Federer winning seven of those matches.
The last seven meetings between the two players have been played on an outdoor surface, with the most recent two on grass.
18 of the last 24 sets between the two players has finished with a scoreline of 6-3 or 6-4.
Roger Federer has a first serve ratio of 62% this season in comparison to Marin Cilic's 58% (all surfaces).
Marin Cilic has made 694 aces so far this season in comparison to Roger Federer's 515.
Roger Federer has 95 career titles to his name in comparison to Marin Cilic's 17.
Roger Federer has saved 67% of break points so far this season in comparison to Marin Cilic's 61% (all surfaces).
Having already booked his place in the semi-finals and with his opponent's qualification hopes over, it will be interesting to see how Federer approaches this dead-rubber encounter with Cilic. The world number two's intensity levels may drop a little, but Cilic has struggled mentally in this tournament having allowed leads to slip out of his grasp in his opening two matches. Expect Federer to do a professional job and make it three wins out of three in the Boris Becker group.