Count Brandon Weeden among those who believe Colin Kaepernick belongs in the NFL. Weeden, a former first-round draft pick who hasn’t played in an NFL game since 2015, was signed by the Titans on Tuesday to serve as the third-string quarterback behind Matt Cassel, in the wake of Marcus Mariota’s hamstring injury. The Titans (2-2) play the Dolphins (1-2) on Sunday (noon CT, CBS) in Miami. Kaepernick, who remains a free agent, was the first to kneel for the national anthem before each game last season, to protest social inequality and police brutality. “He’s had a heck of a career. He played in a Super Bowl. Obviously, he’s done a lot of really good things,” Weeden said about Kaepernick after practice Wednesday. “I think us as players, we all kind of firmly believe that he’s a good enough player to play in this league. Me, myself, I feel like I have the ability to play in this league as well. I’ve never really lost that confidence. I don’t point fingers, if things have gone my way, things haven’t gone my way. But I continue to keep doing the same thing every day. I kind of worry about me and kind of go from there.”