After a busy, up-and-down Sunday, the Adrian Gonzalez trade has been completed, with Gonzalez going from the Padres to the Red Sox, and three prospects going from the Red Sox to the Padres.

The trade was jeopardized when the two sides couldn't work out a contract extension for free-agent-to-be Gonzalez before a 2pm ET Sunday deadline. However, the trade was done a few hours later anyway without an extension in place, and according to Jon Heyman, it's because the Red Sox believe they can reach an agreement with Gonzalez before he enters the market.

The two sides share "common ground on parameters," and the Red Sox are confident they can work something out. The likelihood is that, while both sides agree on Gonzalez's annual salary, they differ on the years, with Gonzalez said to be seeking an eight-year contract, while the Red Sox would prefer to keep him closer to six. If they can meet in the middle, or if the Red Sox can introduce some options, then an agreement should be reached.

Jon Heyman says that the Red Sox may be prepared to give Gonzalez seven years, at about $23 million per season.