AFP Sports Agenda for Monday, August 31 (all times GMT): Twitter: @AFP_Sport Instagram: @afpsport + Messi - in or out of Barcelona training? + Djokovic, Osaka in action as US Open begins in New York bubble + Third stage of Tour de France + Champions League, Europa League qualifying round draws FOOTBALL -- Barcelona report for pre-season training with question mark over whether or not Lionel Messi will be involved after his shock announcement that he wants to leave. Coverage by Tom Allnutt. Picture. Video (FBL-ESP-LIGA-BARCELONA-MESSI) -- Champions League third qualifying round draw (1000) featuring the likes of Benfica, Dynamo Kiev and Red Star Belgrade (FBL-EUR-C1) -- Europa League second qualifying round draw (1100) with Tottenham, Milan, Rangers in the mix (FBL-EUR-C3) -- Former FIFA president Sepp Blatter faces interrogation from the Swiss public prosecutor as part of proceedings opened in 2015 over a 2011 payment of two million Swiss francs to ex-UEFA chief Michel Platini (FBL-FIFA-SUI) TENNIS -- US Open in New York gets underway in the New York 'bubble' with three-time champion and world number one Novak Djokovic and 2018 winner Naomi Osaka in action (1600). Coverage by Peter Hutchison. Picture (TENNIS-USA-OPEN) CYCLING -- France's Julian Alaphilippe is in the yellow jersey ahead of the third stage of the Tour de France, a flat 198km run from Nice to Sisteron. Coverage by Damian McCall. Picture (CYCLING-FRA-TOUR) RUGBY UNION -- English Premiership: London Irish v Saracens (1200), Bath v Wasps (1400), (RUGBYU-ENG-PR) BASKETBALL -- NBA playoffs in Orlando, Florida: 2nd rd - Milwaukee v Miami (1930); 1st rd - Houston v Oklahoma City (2200). Picture (BASKET-NBA) afp