NEW YORK (AP) — Defending champions Jannik Sinner and Aryna Sabalenka, who both top the tennis rankings, led 10 former winners of the U.S. Open who were on the entry lists for this year's tournament that were announced Tuesday. The fields include 18 past Grand Slam singles champions, the U.S. Tennis Association said. Direct entry into the final major tournament of the tennis season was based on the rankings through July 14.