After nearly six months of regular-season battle, the 2016 NBA playoffs tip off this weekend. Fresh off their historic 73rd win, the Stephen Curry-led Golden State Warriors are heavy favorites to win a second straight NBA title. But several teams enter the postseason believing they've got a real shot at toppling the defending champs, provided they get a couple of breaks and some timely contributions from key players. Ball Don't Lie's Dan Devine looks at a handful of X-factors who could help determine the course of these playoffs. [ Follow Dunks Don't Lie on Tumblr: The best slams from all of basketball] Which player do you think is the 2016 postseason's biggest X-factor? Let us know via Twitter , Facebook or in the comments below. More NBA coverage: - - - - - - - Dan Devine is an editor for Ball Don't Lie on Yahoo Sports. Have a tip? Email him at devine@yahoo-inc.com or follow him on Twitter! Follow @YourManDevine Stay connected with Ball Don't Lie on Twitter @YahooBDL , "Like" BDL on Facebook and follow Dunks Don't Lie on Tumblr for year-round NBA talk, jokes and more.