Cubs sign OF Ian Happ to 3-year extension worth $61M, sources say - ESPN
With an extension done, Cubs and second baseman Nico Hoerner show interest in revisiting a longer commitment - Chicago Sun-Times
Rosenthal]The Cubs are in advanced discussions on a contract extension for second baseman Nico Hoerner, sources tell me and @SahadevSharma. : r/CHICubs
The Rundown: Morel Assignment Leaves Personality Void, Hoerner Extended, Cubs Playing Clean - Cubs Insider
Cubs Expected to Seriously Engage Nico Hoerner and Ian Happ on Extensions This Offseason - Bleacher Nation
Official Chicago Cubs Website
Cubs 'Absolutely Have People In-House' to Extend, Including Nico Hoerner - Cubs Insider
Sharma] It's not trade news, but a source tells me Cubs top prospect Pete Crow-Armstrong is being promoted to Triple-A Iowa. He's crushed Tennessee of late and really taken on the challenges
Sources: Hoerner, Cubs agree on 3-year, $35 million extension - ESPN
Heroics of Nico Hoerner provide another example of why the Cubs invested in him