Big news of the day:

Steelers have bigger news — signed Ben Roethlisberger to extension

— Ed Bouchette (@EdBouchette) March 13, 2015

The deal is done. The @Steelers will hold a press conference at 5 p.m. today to make it official — that Ben Roethlisberger has been signed.

— Bob Labriola (@BobLabriola) March 13, 2015

Also, DeAngelo Williams may soon be signing on to back up LeVeon Bell:

No deal done with DeAngelo Williams … YET. Stay tuned — Mark Kaboly (@MarkKaboly_Trib) March 13, 2015

UPDATE:

Excited about signing with the @Steelers! Trust me when I say that I’ve got a LOT of gas left in the tank…. pic.twitter.com/ktRb3NUZ5D

— DeAngelo Williams (@DeAngeloRB) March 13, 2015