British tennis player Jamie Murray believes the greats Rafael Nadal and Roger Federer will be challenged much more at the Grand Slam level in 2018 than they were this past season.
World No. 1 Nadal captured his 10th French Open glory in June before he conquered the last Major of the year — US Open.
On the other side, 2012 Wimbledon champion Federer snapped his long Grand Slam drought when he made it all the way at the Australian Open after beating Nadal in the final.
The 36-year-old Swiss, who opted to skip the French Open, didn't lose a set on his way to winning Wimbledon once again.
Tennis superstars Andy Murray, Novak Djokovic and Stan Wawrinka, who haven't played since Wimbledon, are due to make a comeback after taking their time to improve their health.
"I would be surprised if Nadal and Federer dominate the Grand Slams between them like they did this year," doubles specialist Murray said.
"I think if Andy, Novak, and Stan are back fit and fully motivated they will get right back to the top fairly quickly.
"I know that Andy is absolutely determined, and it's good for them that the Australian Open is right in front of them.
"I don't see any new names quite ready yet to dislodge them. "Others are coming back, like Kei Nishikori and Milos Raonic.