Seahawks coach Pete Carroll called Nate Robinson "an amazing athlete," but says the ex-NBA player faces an "all but impossible" challenge if he wants to get a shot in the NFL.

In Game 7 of the 2010 NBA Finals between the Los Angeles Lakers and the Celtics, Rivers chose not to play Robinson, which did not go over well with the former Boston floor general.

BOSTON - JUNE 10: Nate Robinson #4 of the Boston Celltics reacts against the Los Angeles Lakers during Game Four of the 2010 NBA Finals on June 10, 2010 at TD Garden in Boston, Massachusetts.