Actually, this is not out-of-the-norm in the NFL. In fact, LaDanian Tomlinson signed with the Chargers for a day this past offseason, retiring a Charger. Players often return to their "home" franchise before hanging up their cleats in the NFL.
But wait a minute!
Boller was as close to a Hall of Famer as J.P. Losman was. Obviously, that's not great company.
In a comical twist unseen in today's NFL, Boller abruptly retired one day after he inked a one-year deal. Maybe he wanted to see his name run across the bottom 10th of an ESPN broadcast one more time. Maybe he wanted a cool red jersey or to try on a new Nike shirt.
Boller has worked hard to stay in the NFL for eight seasons, even as a first-round disappointment. At this point in his career, he should know if he wants to stay in the league. Now the Chargers must go out and grab another quarterback to compete with undrafted rookie Jarrett Lee. It wasn't a significant blow for San Diego, but it must be frustrating for the coaches to have a veteran take the next flight out of San Diego on the day of his arrival.
So the only question remaining is, "why?" What is the purpose of signing a deal to only back out the next day? If Boller wasn't committed or was uncertain, he could have avoided foolish publicity by not putting pen to paper at all.
But what do we know? Maybe it was Boller's wildest fantasy to retire a Charger. And if it was, bravo, Mr. Boller.