ATP World Tour Finals 2016 Results: Saturday Tennis Scores and Updated Schedule

Andy Murray and defending champion Novak Djokovic will battle it out for the 2016 ATP World Tour Finals title and the top spot in the rankings on Sunday, as both won their semi-finals on Saturday.

Djokovic cruised past Kei Nishikori 6-1, 6-1, while Murray played out an epic 5-7, 7-6 (5), 7-6 (9) marathon against Milos Raonic. It's Murray's first trip to the final of the tournament, while the Djoker has won the Finals in four straight years.

Here's a look at Saturday's results:

Winner	Score	Loser
Andy Murray	5-7, 7-6 (5), 7-6 (9)	Milos Raonic
Novak Djokovic	6-1, 6-1	Kei Nishikori

Sunday's final will not start before 6 p.m. GMT.

Recap

Murray and Raonic gave the fans at the O2 Arena in London value for their money during the first match of the day, serving up an epic three-setter that required two tiebreaks to come to a conclusion.

Per ATP Media Info, it set a new tournament record:

Raonic's form had been steadily improving entering the contest, and early on, the Canadian made it clear he wasn't going to let the world No. 1 qualify for the final easily.

Murray spent most of the first set chasing Raonic's serve and fighting off break points, and a late break was enough for his opponent to take the advantage.

Julian Finney/Getty Images

The second set played out in similar fashion, and when Raonic broke to grab a 2-1 lead, he appeared to be on his way to the final. But Murray chose that moment to shift gears with a break of his own, and the set turned into an incredible back-and-forth affair.

While Raonic appeared to be the fresher of the two players, Murray made the difference with a handful of key shots. TennisTV shared this sublime finish:

An early mini break was enough for Murray to restore parity and force a third set.

The final set turned into a dramatic affair with plenty of twists and turns. Murray appeared to be exhausted for most of the set, giving up plenty of break chances, but every time he seemed ready to collapse, the world No. 1 found some reserves to extend play.

He broke serve in the ninth game, with Raonic also growing tired, and the two continued breaking each other's serve until it was 6-6.

Tennis coach Magnus Norman was impressed:

The tiebreak remained close, with Murray wasting several match points and Raonic also falling short, but an unforced error decided the match.

Per Live Tennis, Murray knows he will be in for a challenge in the final:

"

'I'll give it my best tomorrow, the best that I have,' #Murray says, looking forward to yet another match. 'It's going to be tough.' pic.twitter.com/Nq7vWJqf4E

— Live Tennis (@livetennis) November 19, 2016"

The Scot wasted an enormous amount of energy in dealing with Raonic, and he might pay the price on Sunday.

By contrast, Djokovic wasted little energy on Saturday. The Serb ran out to a quick 4-0 lead in the first set and dropped just a single game against Nishikori on his way to an early advantage.

Djokovic continued his dominance in the second set, and 59 minutes into the contest, Live Tennis shared an incredible statistic:

"

Kei #Nishikori, no. 5 in the world, hasn't held serve once in 49 minutes. Embarrassing, or too good from #Djokovic, or both? 6-1, 3-0. pic.twitter.com/A76EcIHpLO

— Live Tennis (@livetennis) November 19, 2016"

It was a stunning performance by Djokovic, who served up arguably his best tennis in months. The defending champion hasn't always been at his best throughout the tournament, but if he can carry Saturday's form into the final against an exhausted Murray, he has a great chance of reclaiming the top spot in the ATP rankings.