Five fight for women's top spot Cream of crop set to do battle in Beijing Can 15 m people blow away smog? That's a joke Transplants must be strictly supervised Federer out of Cincinnati with bad back; Nadal to be No 1 Gender bias is the result of twisted male mindset Ties with ROK improving, but cautiously Azarenka quits US Open amid custody fight New era diplomacy to strengthen ties with CEE countries Zverev upsets Federer for Rogers title Tough scheduling takes toll on top players Should grads insist on staying in big cities? A country is defined by both might and culture Maria Sharapova granted wild-card entry into US Open Resting Roger tempers Rafa's return to top Egypt attack related to political turmoil Rafa's return to world No 1 'unbelievable' Think twice about imposing property tax '16+1' invigorates China-Europe ties