One of the biggest tennis tournaments of the year is upon us. The French Open (a.k.a Roland-Garros) will begin soon, and USA TODAY Sports' Dan Wolken is here with keys to how to place your bets and who he thinks has a chance to win the men's and women's singles. Hint: It's not Djokovic... 00:20 Keys to the tournament 3:29 Premium picks: Who does Dan Wolken think will win? » Subscribe to USA TODAY Sports: https://bit.ly/2L0ktE1 » USA TODAY delivers current local and national news, sports, entertainment,  finance, technology, and more through award-winning journalism, photos, videos and VR. » Check out FTW's show Special Delivery: shorturl.at/lAV05 #frenchopen #tennis #NovakDjokovic