So who is your pick to win the U.S. Open?

We've already seen Venus Williams drop out of the ladies draw, citing an autoimmune disease. And on the men's side, many fans complain the Americans just can't stand up to the style and skill of the international tennis stars.

This morning on American Morning, Carol, Ali and Christine speak with Jim Courier, former number one world tennis player and CBS Sports analyst. They asked him if concerns about skill limitations are valid, and which tennis stars he thinks will go all the way in this year's competition.

In addition Courier will be playing in the 2011 Champions series in Ft. Lauderdale on September 22nd. For more information visit: Championsseriestennis.com.