BC-AP Sports Preview Digest

Some of the sports stories being covered by The Associated Press on Wednesday. A full digest will move about 3 p.m. EDT.

- NEW YORK - John Isner, the top-seeded American man, plays his first-round match at the U.S. Open. Others in action include top-seeded Victoria Azarenka, and at night, Maria Sharapova and Andy Murray. Play started 11 a.m.; night session starts 7 p.m.

- Final week of NFL exhibition games begin with three games Wednesday: Tampa Bay at Washington (7 p.m.), New England at N.Y. Giants (7 p.m.), Miami at Dallas (8:30 p.m.).

- College football picks: Among the many games on the opening weekend of the season is No. 8 Michigan against No. 2 Alabama.

- ARLINGTON, Texas - Matt Harrison goes for his 16th win when the AL West-leading Texas Rangers go for a three-game sweep against the Tampa Bay Rays. Starts 7:05 p.m.

- MIAMI - The NL East-leading Washington Nationals try to break a five-game losing streak when Ross Detwiler pitches against Miami Marlins rookie Jacob Turner. Starts 7:10 p.m.

- PITTSBURGH - The Steelers are teaming up with one the country's leading concussion experts provide information on preventing concussions through safe play and proper tackling techniques, as well as concussion management.