The Chicago White Sox and Washington Nationals have advanced deep in trade discussions involving Chris Sale, according to a source.

Negotiations currently have the Nationals sending Lucas Giolito, Victor Robles and a low-level minor leaguer to the White Sox for Sale.

Sale will make $12 million in 2017 and his contract carries club options of $12.5 million for 2018 and $13.5 million for 2019.