The New York Jets and Cleveland Browns are no longer pursuing Colin Kaepernick.
The Browns signed Robert Griffin III this week.
Kaepernick is left with the Denver Broncos as his only remaining logical suitor.
Kaepernick's $11.9 million salary becomes fully guaranteed on April 1 and the San Francisco 49ers do not plan to cut him before that date.
The Broncos would have to trade for Kaepernick and the 49ers have so far been unwilling to deal him without a substantial return.