Andy Murray does not expect the top four to continue to dominate grand slams in the way they have done over the past few seasons.
Rafael Nadal, Novak Djokovic and Roger Federer have dominated the slams, winning 28 of the last 29 between them, with Juan Martin del Potro the only other man to have won one in that time.
But Nadal's shock second-round Wimbledon loss to unheralded Lukas Rosol ensured whoever reaches the final from the bottom half of the draw will do so for the first time, and the Scot said: "I think upsets are part of any sport. Some people like them. I'm sure Rafa has a lot of fans that wouldn't have been too happy about it. But it's just part of sport."
Murray himself could benefit from the lack of Nadal as he bids to reach the final for the first time, but first he must today return to Court One to try to complete a fourth-round win over Marin Cilic after rain forced play at the All England Club to be cancelled on Monday night.
The British number one had taken a firm hold on the match and led 7-5 3-1 when the intermittent drizzle became much more persistent.
He said there are likely to be more shocks in the sport as it would be impossible for the form of the top three to continue indefinitely.
"They (shocks) haven't happened that much over the last few years in slams, but they will start happening more," Murray said. "I don't think consistency from the top players can continue that much."