Can Federer, Nadal, Murray, Younguns or anyone else pose a real threat to Djokovic's #1 dominance?

[Silverbullet96]

Could he come back healthier, he surely could do a ground shaking 2010 or 2013 like resurgence.

He can't reverse the physical decline though. He's hitting and moving noticeably slower than in his prime. Him in 2009 & 2012 and Fed in 2013 were still physically strong and fast to make a comeback to the very top. Rafa's in great shape by his own admission but his shots are not strong enough & is a bit slower also on the court. Freaking O1derer is hitting harder than Nadal right now, ahaha

 

[Phoenix1983]

The likelihood is that Djokovic shall win another major in 2016, but he shall probably lose in the latter stages in the other slams in close five-set matches, to the likes of Wawrinka, Murray and a young gun.

 

[Fiero425]

The likelihood is that Djokovic shall win another major in 2016, but he shall probably lose in the latter stages in the other slams in close five-set matches, to the likes of Wawrinka, Murray and a young gun.

I have to give Nole at least 2 majors somehow with the gutlessness of the rest of the tour competition in his way! They've given me no reason to trust that they can truly get the job done in the past 10 years; why should I now? ;-)