Federer and Djokovic had been a combined 13-0 in Shanghai with a spot in the semifinals on the line, but both lost Friday.
Federer received a code violation in the loss.
However, the 32-year-old has seen a steady improvement in his form and quality of play in recent weeks.
A handicap line can be considered, but given Tsitsipas' propensity to play tight sets, it would be much more risky than simply the match win position on Medvedev here.
"I told him at the net that he showed great character, that he was strong", said the 20-time grand slam champion.
And it was in that final set when Federer had a point deducted for unsportsmanlike conduct when he hit the ball into the air after losing a point, with a tense stand-off with the umpire following. Federer was given a point penalty for twice smacking the ball into the crowd in frustration.
"So you can write on Twitter you mean?" he said in response to a reporter's question.
The Greek Tsitsipas dumped out reigning champion Djokovic, who until that point had looked imperious in Shanghai and did not drop a set in winning the Tokyo title last week.
He said: "The five match points I had in the second set - them going away and still knowing I can win in three sets is very important, especially against someone like Roger because normally he doesn't let go of these kind of matches".
Tsitsipas advanced with a win over Djokovic.
Tsitsipas has beaten the best player in the world to reach the Shanghai Masters semi-finals, as well as qualifying for the ATP Tour finals. Hard court data this year shows the duo having nearly identical service points won numbers, but Medvedev winning nearly 7% more return points - a huge advantage - and given that he's had historical success against Tsitsipas in their previous meetings, all of which are from 2018 onwards, there's a strong case to suggest he's value for a small stake at market lines.
He then played his first singles match in August at the Cincinnati Masters but lost in the first round. "The head-to-head is obviously a great thing to have, but more importantly for me is it was a match to maybe turn my year around a little bit, and the Race to London is also very important", Zverev said.
"If some top players like Fabio can say this about me, shows that I'm on the good way, I'm playing good, and it's not easy to play against me", Medvedev said.
Samedi matin, l'organisation a de nouveau appelé les supporters à rester à l'abri chez eux en attendant sa décision. Le ministère de l'Industrie a déclaré que plus de 16.000 foyers étaient privés d'électricité, dont 7.200 à Chiba.
Matt To'omua lined up in the 10 jersey against Georgia , the third first-five the Wallabies have gone with at the tournament. It doesn't matter, all the different things, who's had a week off, who's had a week on, who's been resting, who hasn't".
Pour nous faire patienter jusque là, la star a dévoilé l'un de ses nouveaux morceaux, enregistré et diffusé via Colors Show . Ce dernier était déjà présent sur l'album " Brol " mais il sera, cette-fois, joué en version orchestrale.
The 34-year-old is now just 15 goals behind the all-time global record of 109 held by former Iran striker Ali Daei . Ronaldo could become only the 6th person to reach 700 career goals when Portugal play Ukraine on Monday.
California's 2019 wildfire season has begun as high winds whip up fires across the northern part of the state. On the other hand, PG&E said it had restored power to 126,000 customers in Northern California by 6:00 a.m.
She is well on track to become the first Australian since Lleyton Hewitt in 2002 to end the year with the No.1 tennis ranking. She wants to have a big finish to the year, with the WTA finals at the end of this month in Shenzhen, China.
Un autre record pour entrer dans la légende, une autre statistique passionnante, comme beaucoup d'autres le font dans sa carrière. Les deux équipes, très bien placées pour se qualifier, se retrouveront lundi à Kiev pour un choc entre invaincus.
Début septembre dernier, Michael Schumacher a été hospitalisé à l'Hôpital européen Georges-Pompidou, à Paris. C'était lors d'une cérémonie dans le paddock Ferrari qui soulignait la 100e course en F1 de Shumacher.
First man to conduct spacewalk, Alexei Leonov, dies aged 85
The memorial service and the funeral are expected to take place on 15 October, at the Federal Military Memorial Cemetery. During the mission, his spacesuit filled with air to the point where he struggled to get back into the spacecraft .
Miami holds off No. 20 Virginia, 17-9
ESPN reported Virginia coach Bronco Mendenhall said postgame the injury was to an ankle, but did not share additional details. Time and time again the Hurricanes defense was at its best against the Cavaliers while inside their own 20-yard line .
Ireland move into quarter-finals by crushing Samoa
We can't control what happens with the Japan-Scotland game, so on Saturday it's up to us to get our business done as best we can". Given the current ongoing controversy over the decision to cancel rather than reschedule certain games due to typhoon Hagibis, .
Oklahoma vs. Texas, 10/8/19 Week 7 Predictions & Preview
The Sooners are 13-3-1 with the over in their last 17 games on grass and 17-6 with the over in their last 23 games in October. While Hurts has vaulted into the Heisman discussion early in the season, Ehlinger has received less acclaim.