The women’s and men’s singles draws for the 2013 US Open tennis tournament at Flushing Meadows, N.Y., will be announced today, and there will be some serious prize money – more than $34 million total -- on the line. Both the women’s and men’s singles champions will be paid $2.6 million, the biggest single payouts in tennis history. Even first-round losers get a healthy paycheck, $32,000. It is the 40th anniversary of equal prize money for women and men at the Open. In addition, Serena Williams and Rafael Nadal, who won the Emirates Airline U.S. Open Series, will earn a $1 million bonus if they win the Open. Victoria Azarenka, Agnieszka Radwanska, John Isner and Juan Martin del Potro also are in line for performance-based bonuses after top-three finishes in the Open series.