Andy Murray and Serena Williams [Source: theguardian]

Andy Murray and Serena Williams wowed Wimbledon again as their box office partnership continued with another straight-set win in the mixed doubles.

Britain’s 32-year-old Murray and 37-year-old American Williams moved into the last 16 with a 7-5 6-3 win over 14th seeds Fabrice Martin and Raquel Atawo.

Williams produced ruthless returning to win crucial break points in each set.

They now play top seeds Bruno Soares – the former men’s partner of Murray’s brother Jamie – and Nicole Melichar.