With star-studded pairings, record prize money and a healthy dose of controversy, the US Open mixed doubles draw gets underway Tuesday in New York with more fanfare than ever before.

Wondering what exactly is so unusual about this event or what we can expect from it? Here's everything you need to know before play begins.

OK, so what makes this different from a typical mixed doubles tournament at a Slam?

Quite a bit. Normally, the mixed doubles event runs concurrently with the main draw and the championship match is held during the final weekend. But this edition will be condensed into two days during qualifying week. While mixed doubles matches are often relegated to the outer courts, and scheduled around singles and doubles matches, these will all be held exclusively at Arthur Ashe Sta

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