Otherwise you are flushing time and resources down the drain.

FORBES: Why Most Recruitment Strategies Are Failing And What You Can Do To Fix This

Like Murray, the Serbian is playing in his first tournament since Flushing Meadows, and wasted little time in beating Argentina's Carlos Berlocq in straight sets.

CNN: STORY HIGHLIGHTS

Williams, who is bidding to win the Flushing Meadows crown for the fourth time, will now meet former champion Clijsters in an eagerly awaited last four clash.

CNN: Wickmayer moves into final four at U.S. Open

The USTA liked its old "Super Saturday" setup since 1984, both men's semifinals and the women's final were all on that day's schedule at Flushing Meadows but Brewer acknowledged it was time to scrap it.

WSJ: U.S. Open Tennis To Boost Prize Purse To $50M By 2017

Niacin, however, causes side-effects such as itching, rash and intense flushing, which are discomforting enough that many patients are reluctant to remain on niacin for extended periods of time.

FORBES: Niacin, Statins And Difficulties Of Drug Discovery