The Colts made Chandler Harnish the final pick of the 2012 NFL Draft, as known as Mr. Irrelevant, apparently stealing him from the Chargers. "Late in the seventh round I'm very depressed. ... I was getting calls from like the Kansas City Chiefs, the Tennessee Titans, St. Louis Rams, Oakland Raiders, just a bunch of teams were (calling) -- and I'm talking to my agent every three minutes," the former Northern Illinois quarterback explains. "It looked like we were about ready to set up a free agency deal. I was ready to go to San Diego. ... "They wanted the decision 10 minutes after they could put the deal on the table, and this was still at pick 240," Harnish says. "So there were still 13 picks to go. And they put the deal on the table that they wanted me to be a free agent and I had to say 'yes' to it. ... We tell San Diego we want that deal. Well, my agent tells the Colts, 'Hey, he's going to San Diego if you guys don't draft him with your last pick.' So, because of that, the Colts were like, 'We want him. We want to take him before he goes to free agency, and then he goes to San Diego.'"

There was a lot of speculation that Philip Rivers was playing with an injury last season, especially since he threw 17 interceptions through his first 10 games. Rivers and the Chargers denied any injury persistently, but the topic kept coming up because of his poor play. "I was not hurt, and still don't. I feel great," Rivers said. "It's a compliment. It's not true, but I appreciate that nobody thinks that I would throw 20 picks unless I was hurt, so I guess that's a good thing."

The Chargers have signed free agent tackle Mario Henderson to a one-year contract. Henderson spent last season with the Colorado Ice of the Indoor Football League after being released by the Raiders.

The Chargers added their third wide receiver/kick returner of free agency today, signing former Buccaneer Michael Spurlock to a one-year contract. Spurlock is in his fifth NFL season and the Chargers will be his fourth NFL team. He’s spent time with Arizona, San Francisco and Tampa Bay. Spurlock is one of only two players in Tampa Bay history with both a punt and kickoff return touchdown to his credit and he’s the first Buccaneer with two kickoff returns for touchdowns.

The Chargers have re-signed defensive tackle Luis Castillo, according to a tweet by his agent. Castillo, who missed most of the 2011 season after suffering a fractured leg in Week 1, was released by San Diego earlier this year.

The Chargers have agreed to a one-year contract with free-agent wide receiver and kick returner Roscoe Parrish. Parrish, who joined the Chargers on Tuesday, spent his first seven seasons with the Bills,