The Red Sox have already started contract extension talks with a new addition acquired this winter through a trade.

The Boston Red Sox could still look to move star first baseman Triston Casas if they get the right value in return.

Last month, the Boston Red Sox made a blockbuster trade, acquiring left-handed starter Garrett Crochet from the Chicago White Sox for a package of four of the team's top prospects. While Crochet still has two years of team control left on his deal,

The Boston Red Sox reportedly have begun working on a contract extension with Garrett Crochet, who was acquired via trade in December.

The Red Sox made one of the biggest trade acquisitions of the winter, landing Garrett Crochet from the White Sox for four prospects. Boston apparently has interest in keeping its newly acquired southpaw for the longer term.