REUTERS SPORTS SCHEDULE AT 7:30 pm GMT/2:30 pm ET

Roger Federer’s bid for a hat-trick of Australian Open titles was crushed on Sunday as Greek wunderkind Stefanos Tsitsipas rose up to floor the Swiss master and become his nation’s first Grand Slam quarter-finalist.

TENNIS-AUSOPEN-PAVLYCHENKOVA Pavlyuchenkova beats Stephens in marathon contest to reach quarters

MELBOURNE (Reuters) - Unseeded Russian Anastasia Pavlyuchenkova won a marathon three-setter against American fifth seed Sloane Stephens 6-7(3) 6-3 6-3 to reach the Australian Open quarter-finals on Sunday and match her best show in Grand Slams. TENNIS-AUSOPEN-FEDERER-REAX

Federer rues missed chances in Tsitsipas thriller MELBOURNE (Reuters) - If having his Australian Open title defense ended early was not painful enough for Roger Federer on Sunday, there was the additional sting of being beaten by a tyro with plenty of similarities to his younger, fearless self.

UPCOMING SPORTS

SOCCER-SPAIN-FCB-LEG/REPORT Soccer - Spain - La Liga - Barcelona v Leganes

Spanish champions Barcelona face Leganes in La Liga. 20 Jan 14:45 ET / 19:45 GMT

SOCCER-ITALY-NAP-LAZ/REPORT (PIX) Soccer - Italy - Serie A - Napoli v Lazio

Second-placed Napoli host Lazio in a Serie A match 20 Jan 14:30 ET / 19:30 GMT

SOCCER-GERMANY/ Five talking-points from the Bundesliga weekend

Five talking-points from the Bundesliga weekend 21 Jan

SOCCER-ITALY/ Soccer - Italy - Five-talking points from the Serie A weekend

Five talking-points from the weekend's Serie A matches 21 Jan 05:00 ET / 10:00 GMT

ATHLETICS-MARATHON/KAWAUCHI (TV) Boston Marathon winner Kawauchi discusses his future as he finally turns professional

Boston Marathon winner Yuki Kawauchi will look to turn professional later this year at the age of 32. He currently works in a school for the Saitama Prefectural Government but says he wants to commit to the marathon on a full-time basis. With Tokyo gearing up to host the 2020 Olympics and Japanese marathon running on the rise, this would appear to be a good time for the veteran to focus fully on his running. 21 Jan 02:00 ET / 07:00 GMT

SOCCER-SPAIN/ Soccer- Five talking points from the weekend in La Liga Five talking points from the weekend in La Liga.

21 Jan 06:00 ET / 11:00 GMT SOCCER-ITALY-GEN-MIL/REPORT

Soccer - Italy - Serie A - Genoa v AC Milan Genoa host AC Milan in a Serie A match

21 Jan 09:00 ET / 14:00 GMT SOCCER-ASIANCUP-ARE-KGZ/ (PIX)

Soccer - AFC Asian Cup - Round of 16 - United Arab Emirates v Kyrgyzstan Tournament hosts United Arab Emirates play the Kyrgyzstan in the AFC Asian Cup Round of 16 at Abu Dhabi's Zayed Sports City Stadium.

21 Jan 12:00 ET / 17:00 GMT SOCCER-ASIANCUP-AUS-UZB/ (PIX)

Soccer - AFC Asian Cup - Round of 16 - Australia v Uzbekistan Australia play Uzbekistan in the AFC Asian Cup Round of 16 at Al Ain's Hazza bin Zayed Stadium.

21 Jan 09:00 ET / 14:00 GMT MOTOR RACING-DAYTONA/ZANARDI

Motor racing - Zanardi back in driver's seat at 24 Hours of Daytona Alex Zanardi, who lost both his legs and nearly his life in an IndyCar crash in Germany, returns to the cockpit for the 24 Hours of Daytona, one of motor sports biggest endurance races.

21 Jan 12:00 ET / 17:00 GMT TENNIS-AUSOPEN/ (PIX) (TV)

Tennis - Australian Open Action from the fourth round of the Australian Open, the first grand slam tennis tournament of the year, in Melbourne.

21 Jan 19:00 ET / 00:00 GMT SOCCER-ASIANCUP-JPN-SAU/ (PIX)

Soccer - AFC Asian Cup - Round of 16 - Japan v Saudi Arabia Japan play Saudi Arabia in the AFC Asian Cup Round of 16 at the Sharjah Stadium.

21 Jan 06:00 ET / 11:00 GMT SOCCER-ENGLAND/

Soccer - Premier League talking points Five talking points from the weekend's action in England

21 Jan