By Andrew Holleran Free agent quarterback Colin Kaepernick has at least one NFL player in his corner as he attempts to get signed by a team. Kaepernick, who last played in the National Football League in 2016, is hoping to make a comeback this year. The former San Francisco 49ers quarterback has been working out this offseason, making his pitches to various teams. So far, no teams have had legitimate interest, but one wide receiver is hoping that will change soon. Carolina Panthers wide receiver Robby Anderson voiced his support for a Kaepernick signing earlier this week. Longtime NFL insider …