Cubs acquired LHP Rex Brothers from the Rockies for LHP Wander Cabrera.
Cubs signed RHP Drew Rucinski to a minor league contract.
Rich Dubroff of CSNMidAtlantic.com reports that the Indians, Tigers, and Padres are among the teams showing interest in free agent right-hander Tommy Hunter.
Rex Brothers told the Denver Post he was "very surprised in a lot of ways" by the Rockies' decision to designate him for assignment.
Agent John Boggs said his client Trevor Cahill would prefer to start but "would accept a bullpen spot if he doesn't secure a starting job."
Cubs purchased the contract of C Willson Contreras from Double-A Tennessee.
Cubs purchased the contract of 1B Dan Vogelbach from Double-A Tennessee.
Cubs purchased the contract of INF Jeimer Candelario from Double-A Tennessee.
Cubs purchased the contract of RHP Pierce Johnson from Double-A Tennessee.
Rockies designated LHP Rex Brothers for assignment.
Cubs acquired RHP Spencer Patton for INF Frandy Delarosa.
Cubs claimed LHP Jack Leathersich off waivers from the Mets.
Cubs signed RHP Andury Acevedo to a one-year contract.
Jake Arrieta said that he believes contract extension talks with the Cubs this winter are "inevitable."
Jake Arrieta was named the winner of the 2015 National League Cy Young Award by the Baseball Writers Association of America on Wednesday.