Best, the 30th overall pick of the 2010 NFL Draft, was expected to be signed in the coming days, but it wasn't clear if he'd get a deal done before the first practice tomorrow. As it turns out, he and the Lions worked something out with plenty of time to spare, which is great news.
The other good part of this is that the Lions can now turn their full attention to Ndamukong Suh. It may be a wasted effort until Sam Bradford signs, as that appears to be the biggest cause for this holdup, but at least one of the Lions' first-rounders will for sure be ready to go tomorrow.
UPDATE: The Lions have confirmed the news.
UPDATE II: According to Pro Football Talk, Best's deal is worth $9.8 million.