Jeff Hardy lost a tooth after being on the receiving end of a kick by Sheamus. WWE posted the following on their Youtube channel of Jeff receiving medical treatment for the broken tooth:
 

After last night’s match with the Hardys retaining against Cesaro & Sheamus, there were multiple hints that “Broken” Matt Hardy was gradually coming back.
There was also a hint by one of the commentators when Matt was being spun by Cesaro, with the comment being something to the effect of “Matt Hardy is going to think he’s in a different universe when this over.
Here are the tweets below:
 

Toothless & BROKEN. Tonight was DELIGHTFUL. #WWEPayback.
— Sheamus (@WWESheamus) May 1, 2017

You OBSOLETE HERETICS have no idea what you’ve just done. https://t.co/lORPikO3uC
— REBORN by FATE (@MATTHARDYBRAND) May 1, 2017