The Harbaugh brothers are at the Sweet 16, wearing Indiana shirts

The Harbaughs are Hoosier backers.

Michigan football coach Jim Harbuagh and his brother, Ravens coach John Harbaugh, are in attendance for Indiana's Sweet 16 matchup with No. 1 North Carolin. They're proudly donning Indiana gear.

If you're wondering what the connection is here, their sister, Joani, is married to Idiana coach Tom Crean. This is John's second straight appearance at an Indiana tournament game.

It's confirmed — Jim Harbaugh to the Indiana.