Toni Nadal says that if his nephew Rafael Nadal isn’t playing well in 2016, it's possible that another coach could step in to help.

The 14-time Grand Slam champion hasn't won’t a major since last year's French Open and hasn't won a Masters tournament in 2015. Toni Nadal has coached Rafael, who has won three titles in 2015, since the Spaniard began playing tennis.

A number of top men's players have brought in additional coaches who are former players. Roger Federer works with Stefan Edberg; Novak Djokovic works with Boris Becker; Andy Murray works Amelie Mauresmo and Jonas Bjorkman, and previously hired Ivan Lendl.

"I think you need to ask Rafael," Toni Nadal told AFP about the prospect of hiring another coach. "But we have a group and I'm the coach of Rafael forever, since Rafael was three years old... and things were always good for us. It's true that this year he's going a little down but I am sure the comeback of Rafael is coming soon. Maybe if next year Rafael is playing not too good, then I think he can think about some changes in his game or in his team."

Federer, Djokovic, Murray, and Nadal all work with multiple coaches. Nadal works with Francisco Roig on a part-time basis; Federer has been coached by Severin Luthi since 2008; Djokovic works with Marian Vajda, who he started with in 2006; Murray has been switching between Bjorkman and former No. 1 Mauresmo.

Nadal, who is playing in Beijing this week, says that he could still have a good fall season. He is currently ranked No. 8.

"I think I am working well. I am very motivated to go for that challenge that brings me the chance to overcome a tough situation for me," the 29-year-old said. "I love that feeling, and I am going to fight to make that happen."