Line-up for the ATP Cup quarter-finals in Sydney after the round-robin concluded on Wednesday. Each tie consists of two singles and a doubles:
January 9
10am (2300 GMT Wednesday)
Britain v Australia
Not before 5.30pm (0630 GMT)
Argentina v Russia
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January 10
10am (2300 GMT Thursday)
Serbia v Canada
Not before 5.30pm (0630 GMT)
Belgium v Spain