What a week it has been in New York City.
The tennis courts at the Billie Jean King National Tennis Center have been littered with upstarts and legends over the last seven days, and along the way we've seen so many underdogs triumph and even more champions stand their ground.
Most of the underdog victories have come on the women's side of the draw, where six of the top eight seeds have already fallen. Besides No. 4 David Ferrer, who fell to Gilles Simon on Sunday, all of the men's top contenders are still standing.
Before the second week starts, let's revisit the favorites for the men's and women's singles titles. You might be surprised at some of the names on the list.