The Boston Red Sox have traded right-hander John Lackey to the St. Louis Cardinals for right-hander Joe Kelly and outfielder Allen Craig before Thursday's deadline.

Earlier, the Red Sox sent their top starter, left-hander Jon Lester, to the Oakland Athletics with outfielder Jonny Gomes and cash for slugging outfielder Yoenis Cespedes and a 2015 draft pick.

Boston also traded reliever Andrew Miller to the Baltimore Orioles for minor-league pitcher Eduardo Rodriguez, and sent shortstop Stephen Drew to the Yankees for utilityman Kelly Johnson.

Lackey was 11-7 with a 3.60 ERA as the No. 2 starter in Boston's rotation.

His five-year, $82.5-million contract will expire at season's end, but it contains a clause that allows his team to add an extra year at the major-league minimum of $500,000 if he underwent Tommy John surgery at any time, and he did in 2011.

Kelly is 2-2 with a 4.37 ERA in seven starts. He has made four starts since being activated from the disabled list on July 11.

Craig is batting .237 with seven homers and 44 RBIs.

With files from CBCSports.ca