Upsets unlikely as big guns set for Wimbledon last 16

Andy Murray of Britain celebrates after winning his match against Andreas Seppi of Italy at the Wimbledon Tennis Championships in London, July 4, 2015. REUTERS/Henry Browne

LONDON (Reuters) - Rafa Nadal may have left the stage but the smooth progress into Wimbledon's second week of the remaining members of tennis's established powerbase suggests further upsets are unlikely in the men's last 16 on Monday.

The 'Big Four' have been whittled down to a top three, but for Novak Djokovic, Roger Federer and Andy Murray, who were largely untroubled in their opening matches, there seems no end on the horizon to their dominance at the All England Club.