Reports: White Sox sign closer David Robertson, trade for Jeff Samardzija

The Chicago White Sox signed former Yankees closer David Robertson to a four-year deal in excess of $40 million and acquired starting pitcher Jeff Samardzija in a trade with the Oakland A's.

The White Sox agreed to terms with former Yankees closer David Robertson and traded for A's starter Jeff Samardzija according to Bob Nightengale of USA Today and Jon Heyman of CBSSports, respectively. Robertson's deal is reported to be for four years and in excess of $40 million. Samardzija was traded to Oakland in July and finished with a record of 5-6, a 3.14 ERA and 99 strikeouts in 16 starts.​ Neither deal has been confirmed by the White Sox.

David Robertson agrees to a four-year deal with the White Sox http://t.co/xQwWXf8dbh

— Bob Nightengale (@BNightengale) December 9, 2014

deal to send samardzija to the white sox is agreed to

— Jon Heyman (@JonHeyman) December 9, 2014

Big-league source tells Chronicle: #Athletics to get RHP Chris Bassitt from #WhiteSox as well as infielder Marcus Semien (as expected).

— Susan Slusser (@susanslusser) December 9, 2014

A third player also likely to be in that deal for Samardzija, source tells the Chronicle. So Bassitt, Semien, third player to #Athletics.

— Susan Slusser (@susanslusser) December 9, 2014

Robertson finished last season with 39 saves in 44 attempts and a 3.08 ERA. Considered the top available closer on the free agent market, Robertson was reportedly weighing offers from the White Sox, Yankees and Astros.

The Yankees, who recently signed left-handed reliever Andrew Miller to a four-year contract, will likely transition All-Star setup man DellinBetances into the closer’s role.

-- Gabriel Baumgaertner