AFP Sports Agenda for Thursday, September 3 (all times GMT): Twitter: @AFP_Sport Instagram: @afpsport + Serena, Murray eye US Open third round + Germany v Spain in Nations League clash + Yates in yellow at Tour de France TENNIS -- Serena Williams faces Magarita Gasparyan while Andy Murray tackles Canadian 15th seed Felix Auger-Aliassime in the second round of the US Open. Coverage by Peter Hutchison. Picture (TENNIS-USA-OPEN) FOOTBALL -- UEFA Nations League: League A, Group 4: Ukraine v Switzerland; Germany v Spain (both 1845); League B, Group 3: Turkey v Hungary, Russia v Serbia (both 1845); Group 4: Bulgaria v Republic of Ireland, Finland v Wales (both 1845); League C, Group 3: Moldova v Kosovo, Slovenia v Greece (both 1845); League D, Group 1: Latvia v Andorra (1600), Faroe Islands v Malta (1845) Picture (FBL-EUR-NATIONS) -- Monitoring developments in Lionel Messi's conflict with Barcelona. Coverage by Tom Allnutt. (FBL-ESP-LIGA-BARCELONA-MESSI) -- In an exclusive interview with AFP, Luka Modric talks Lionel Messi's Barca battle, Zinedine Zidane and becoming a leader at Real Madrid. By Tom Allnutt (0205). Video (FBL-CRO-ESP-MODRIC-REALMADRID-LIGA-MESSI-ZIDANE) CYCLING -- Sixth stage of the Tour de France is 191km from Teil to Mont Aigoual with Britain's Adam Yates in the yellow jersey. Coverage by Damian McCall. Picture. Video. Graphic (CYCLING-FRA-TOUR) BASKETBALL -- NBA playoffs in Orlando, Florida: The Boston Celtics take a 2-0 lead into game three of the Eastern Conference semi-finals against the Toronto Raptors (2230); Denver Nuggets and Los Angeles Clippers open their Western Conference semi-final series (0100 Friday). Picture (BASKET-NBA) GOLF -- LPGA CP Women's Open, Vancouver (GOLF-LPGA); European Tour at Andalucia Masters, Valderrama (GOLF-EPGA-ESP) afp