However , Owens challenged the 49ers ' right to make the deal .
On March 4 , 2004 , San Francisco , believing it still held Owens ' rights , attempted to trade Owens to the Baltimore Ravens for a second round pick in the 2004 draft .
Owens challenged the 49ers ' right to make the deal .
On March 4 , 2004 , San Francisco , believing it still held Owens ' rights , attempted to trade Owens to the Baltimore Ravens for a second round pick in the 2004 draft .