The 37-year-old was crystal clear that he'd rather focus on the ATP Finals, where he's set to play an undefeated Kevin Anderson in his final round-robin match on Thursday.
'I feel like some of the things he did today I didn't really adjust to very well, ' said Anderson after the match.
"It's always a great challenge taking him on", he said after his drubbing of Nishikori, "and it's a great opportunity to play arguably the greatest player of all time, but I've played two really good matches so I'm excited to be facing him now".
Roger Federer gained sweet revenge over Kevin Anderson at the ATP Finals on Friday morning (AEDT), staying on course for his 100th title with a 6-4 6-3 win as both players progressed to the last four.
Last month, 20-time Grand Slam champion Federer revealed that he has been struggling with a hand injury since this year's grasscourt season.
Marin Cilic, who lost to Federer in the final of the Australian Open in January, questioned the tournament's use of the heat rule in closing the roof before the title clash. "I'm not used to losing and then coming back to play, it was a good test".
Another break followed in the seventh game as Thiem netted a tame volley as Federer won the first set easily. Sometimes I get help, sometimes I don't.
Russia Wants to Steer Clear of Any OPEC-Led Oil Production Cut
Merrill Lynch says US crude production will break through 12 million bpd in 2019, supporting oil exports to the rest of the world. OPEC - led by Saudi Arabia - along with Russian Federation have been burned by previous decisions to refuse production cuts.
The only way Djokovic doesn't win the Gustavo Kuerten group (and play Anderson, not Federer on Saturday) is if the Serb loses to Cilic and Isner beats Zverev.
Djokovic said, "I understand Julien's point because sometimes it does seem that maybe certain players get more favored. Sometimes they ask me, you know, 'Asia wants you to play at night, '" Federer revealed in his press conference.
But Anderson, who has become the first South African to reach the semis of this event, broke back immediately as Federer's usually dependable serve went amiss. The following game was also very long and Thiem converted the fifth break point after a double fault from Nishikori, closing the set with a forehand victor in the following game after 41 minutes.
In the evening program, Anderson will compete with Roger Federer for an exit from group from the first position.
"In terms of players and their appeal, it needs to be said that Roger Federer is a once-in-a-generation player widely regarded as one of the biggest "box office" athletes in the world", Craig Tiley told an Australian newspaper earlier on Wednesday.
Federer was asked if Anderson's marathon victory at Wimbledon would feature in his thoughts as he prepares for this match. 'He has won many Masters 1000 events already, I think three in his career, which is quite impressive.
'I was not feeling good to play such a match in front of such a big crowd and everything.