The Boston Celtics have signed guard Jrue Holiday to a substantial four-year, $135 million contract extension.

Jrue Holiday has opted out of his $37.5 million player option for the next season to sign the extension.

The signing positions the Celtics as championship favorites for the forthcoming four years, as per analyst Brian Scalabrine.

The Celtics have invested heavily in their core players, which could lead to financial concerns if championship aspirations are not realized.

The team's lineup is now solidified with key players Jrue Holiday, Jaylen Brown, and Jayson Tatum poised for a championship run.