Cubs catcher Yan Gomes (oblique) scratched; Willson Contreras also out – NBC Sports Chicago
What happened to Willson Contreras? Cardinals catcher forced to exit game vs Athletics early
Cubs' Willson Contreras day-to-day with strained hamstring - Chicago Sun-Times
Cubs 4, Brewers 1: Willson Contreras injured during well-played win - Bleed Cubbie Blue
Cubs lose Willson Contreras, but Alex Avila ready to step in
Hamstring strain could sideline Cubs' Contreras 4-6 weeks
Bryant, Contreras lead Cubs over Braves in Kazmar's return - The San Diego Union-Tribune
Cubs' Willson Contreras day-to-day with hamstring injury – NBC Sports Chicago
Cubs hope Contreras continues to grow
Cubs: Contreras Sidelined, Norris Throws BP, Schwindel and Madrigal Stand In - On Tap Sports Net
Chicago Cubs: Willson Contreras might be what the team needs
Willson Contreras injury update: Cubs catcher (hamstring) expected to miss 4 weeks, report says