NEW YORK (AP) — The U.S. Open overhauled its mixed doubles tournament in hopes of drawing the top singles players.

The defending champions don't intend to move out of the way so easily.

Sara Errani and Andrea Vavassori earned the first win in the tournament, beating the No. 2-seeded team of Taylor Fritz and Elena Rybakina 4-2, 4-2 on Tuesday.

Traditional doubles specialists like the Italian combo were among the biggest critics of the changes, with a format that feels more like an exhibition than one worthy of a Grand Slam trophy. Karolina Muchova, in fact, actually referred to it as an exhibition during the postmatch interview after her team's opening victory.

The prize of $1 million to the winning team would be a huge boost to doubles players, but Errani and Vavassori are the only tra

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