An endurance sprint

Men's 400m final

The 100-meter dash offers a more immediate payoff, but the 400 has always seemed like the more difficult race. The men's final is at 3:30 p.m. (CDT). TV: 7-11 p.m., Ch. 11.

Women's soccer: This is getting serious. Team USA takes on Canada in the semifinals. 1:30 p.m., NBCSN.

Men's basketball: Was a five-point win over Lithuania a wakeup call for the U.S.? Argentina is up next. 4:15 p.m., NBCSN.

Men's wrestling: Finals in Greco-Roman competition. 1:30 p.m., MSNBC.

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