Best, worst 2013 extensions

Buster Posey and the Giants both have to feel good about the contract he signed. Jennifer Stewart/Getty Images

While a few stray free agents remain unsigned, the upcoming baseball news landscape is going to be dominated by new contracts for players already in camp for spring training. Clayton Kershaw, Freddie Freeman, Michael Brantley, and Julio Teheran have kicked off the start of the 2014 extension season, but they won't be the last players to sign long-term deals with their current clubs. Between November 2012 and June 2013, 12 players re-signed with their organizations for deals that run at least five years, and if that trend holds, we're likely to see another wave of long-term extensions over the next few months.

Let's take a look at those 12 deals and see how they've worked out for both the team and the player. For reference, all total listed years and dollars are from the point of the signing through the expiration of the extension, and in some cases, include years already covered by a previous contract.