Kellen Winslow Jr. -- 'I Have Interest from NFL Teams' ... But I Wanna Be A Packer! (VIDEO)

Kellen Winslow Jr. says he's getting real interest from multiple NFL teams -- despite the fact he hasn't played since 2013 -- but says he's laser-focused on getting a shot with the Packers.  The 33-year-old former Pro Bowl tight end tells TMZ…