AFP Sports Agenda for Tuesday, August 25 (all times GMT): Twitter: @AFP_Sport Instagram: @afpsport + Pakistan fighting to save third Test + Serena Williams plays as Cincinnati tennis events continue in New York bubble + Wolfsburg face Barcelona in women's Champions League semi-final + Countdown to Tour de France CRICKET -- On the fifth day of the third Test in Southampton, Pakistan start 210 runs behind with eight second-innings wickets left but rain forecast as they fight to avoid defeat to England. (1000). Julian Guyer covering. Picture (CRICKET-ENG-PAK) TENNIS -- Day four of the Cincinnati ATP and WTA tournament taking place inside a bio-secure bubble at the US Open site in New York with Serena Williams and Dominic Thiem among the stars in action. Picture (TENNIS-ATP-WTA-USA) FOOTBALL -- UEFA Women's Champions League semi-final: Wolfsburg v Barcelona in San Sebastian (1800) (FBL-EUR-C1-WOMEN) -- Champions League second qualifying round: PAOK Salonika (GRE) v Besiktas (TUR), Tirana (ALB) v Red Star Belgrade (SRB) (both 1800) (FBL-EUR-C1) CYCLING -- Advancers on the Tour de France, which starts in Nice on Saturday, including: Five Key Stages; Six Contenders; and David Brailsford profile. By Damian McCall (CYCLING-FRA-TOUR) RUGBY UNION -- English Premiership: Bristol v Exeter (1845). Wasps v Sale (1630). (RUGBYU-ENG-PR) BASKETBALL -- NBA playoffs first round in Orlando: Utah v Denver (2230), Dallas v LA Clippers (0100 Wednesday) (BASKET-NBA) afp