Jalen Rose's 100-year-old grandma calls out Sister Jean: 'It's over'

America's newest celebrity, thanks to the NCAA tournament, is Sister Jean.

The 98-year-old chaplain for the Loyola-Chicago basketball team, Jean Dolores-Schmidt has been everywhere. Dozens of cut-away shots during the games, "Good Morning America" and countless other interviews.

Heck, she even has her own bobble head and sneakers in the works.

Loyola-Chicago, the surprise team of the Final Four, takes on Michigan on Saturday (6:09 p.m., TBS). And while John Beilein is working on a defensive game plan for the Ramblers, one U-M support has Sister Jean covered.

RELATED: Here's a photo of Sister Jean from Loyola's last NCAA Final Four in 1963

Meet Mary Belle Hicks. She's the 100-year-old grandmother of Jalen Rose, one of the famed Fab Five members.

Rose made an Instagram post late Sunday of Hicks and a message for Sister Jean.

Grammie has a Final Four message for Sister Jean!! #GoBlue #Keepingit100

A post shared by Jalen Rose (@jalenvseverybody) on Mar 25, 2018 at 3:58pm PDT

"Sister Jean, it's been a good ride. But it's over Saturday. Go Blue," Hicks said.

Let the world's nicest trash-talking battle begin!