Thirty-nine Americans, including those in qualifying rounds, entered the Australian Open. After qualifiers, the number had dropped to 24. Only 19 remained after the first day of matches. By the time you read this it could be down to 15.
How many will still be around the second week? That depends on talent, nerve and the luck of the draw.
Venus Williams entered the Australian Open looking strong. She reached the final in Auckland, where she lost a tightly contested three-setter to Ana Ivanovic. However, Williams drew Ekaterina Makarova in the first round. Makarova, seeded No. 22, defeated Williams.
John Isner, the highest-ranked American male, retired in his first-round match against Martin Klizan. That leaves unranked Sam Querrey as the best hope. Querrey has to get past No. 23 Ernests Gulbis in the second round. Realistically, it will take a few miracles to get an American man into the second week.
Anything can happen. But a handful of American women have the best chance of reaching Week 2.