From the Boston Globe article that someone mentioned earlier:
The Canton-based sneaker maker, which is owned by Adidas Group, is laying off about 6.5 percent of its 1,700 Bay State employees, including 101 at its headquarters and 12 in Mattapoisett. Across North America, the company is laying off 65 employees in Indianapolis; 12 in Cedar Rapids, Iowa; 60 in Montreal; and about 60 in Mexico. After the dismissals, which are effective immediately, Reebok will be left with slightly more than 8,500 employees worldwide.
The job cuts are spread throughout the company's departments, although the majority are in sales operations and marketing, said spokeswoman Josie Stevens. The company would not say how much it expects to save through the downsizing.
In its most recent earnings report, Adidas said group revenue in North America fell 7 percent during the first nine months of 2008 due to lower sales in the United States, while its sales in all other regions of the world grew by double digits. Sales at Reebok slid 2 percent
The article doesn't mention anything specific about sponsored athletes, or even their running program, so I wouldn't freak out too much. I don't think Nick Willis is going to fall under the 6.5% of employees who are laid off. It's too bad for the company and the people who work for them, but I think sponsored runners should be fine.