Betting

Take a flier on this former US Open champion

For those who’ve been following our plays here in The Post since our first “Weekend Betting Guide” on June 29, We hope you were on board with Novak Djokovic at +550 to win Wimbledon. Now we’re back for the U.S. Open, which begins Monday.

Djokovic is the +220 favorite at the William Hill books in New Jersey, but I consulted with my tennis betting partner Jeff and we no longer see value on him at that price.

The play: Juan Martin del Potro at 14/1. He won this tournament in 2009 and is in the best form of his career, including two tournament wins this year. Furthermore, he’s the No. 3 seed and ranked No. 3 in the world, yet he’s somehow being dismissed as the fifth betting choice despite having a relatively favorable draw that should have him cruise into the quarterfinals.