The 2012 U.S. Open is ready for its fourth day of action on Thursday morning in venerable Flushing, N.Y.

One of the most fascinating matchups is Venus Williams against No. 6 seed Angelique Kerber. The German is expected to win somewhat easily, but Williams isn't to be underestimated, even at this point in her career.

Another women's match that should be intriguing is between Sloane Stephens and Tatjana Malek. Stephens is being looked upon by many experts as a sleeper in this tournament and has quickly been rising in the tennis world. Malek is an experienced player who hasn't had much success in majors, never getting past the second round.

On the men's side of the draw, keep an eye on James Blake against No. 24 Marcel Granollers. Blake has the potential to go far in the U.S. Open, but has a tough opponent waiting. If the American can find a way to beat Granollers, he may be able to get on a roll.

For a full look at the schedule, please click here.

TV: Tennis Channel and ESPN2

Time: 11 a.m. ET (Tennis Channel) 1 p.m. ET ESPN2

Live Streaming: U.S. Open website

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