Red Sox move starter Corey Kluber to bullpen with Whitlock's

Too many injuries, not enough impact: The 2023 Red Sox in a nutshell - The Athletic

Two-time Cy Young winner demoted to bullpen

Red Sox moving Corey Kluber to bullpen as former Cy Young winner will make first relief appearances since 2013

Red Sox' Kluber headed to bullpen, Red Sox

Red Sox move two-time Cy Young winner to bullpen

Red Sox pitching: Yes, they've got depth. But can they rely on it?

The Boston Red Sox starting pitching will turn things around

If Healthy Again, Corey Kluber an OK Get By Red Sox - Belly Up Sports

Red Sox starters ready for spring, but will they stay healthy for the regular season? - The Athletic