Roger Federer takes on Paul-Henri Mathieu after wins for Caroline Wozniacki and Maria Sharapova and a shock defeat for Jelena Jankovic on day six of the US Open at Flushing Meadows.
England coach Andy Flower says he is satisfied with spin bowling coach Mushtaq Ahmed's role within the team despite previous links with illegal bookmakers.
A lawyer for the three Pakistan players at the centre of allegations of corruption says they are keen for a "timely and satisfactory outcome" to the affair.
A bomb kills at least 50 people at a Shia Muslim rally in the south-western city of Quetta, the second attack on Pakistan's religious minority in days.
England's first city-wide lottery system aimed at solving the problem of allocating places at over-subscribed schools failed to give poorer children equal access to top schools, academics say.
Ultrafine measurements of atmospheric gases could help scientists track down the last sources of CFCs thought to be slowing the recovery of the ozone layer.
The former Pakistan cricket captain, Imran Khan, has said that if players are found guilty of spot fixing, they should not be given a life ban, which some officials are demanding.