Sullivan-Brown joined fellow wideouts Juwan Johnson and Brandon Polk in the transfer portal, according to 247Sports.
The Wolverines struggled to crack the Lady Lions' defense, but shooting woes plagued Penn State as it finished the game converting 31.5 percent of attempts from the field.
The Nittany Lions went 1-4 in the first tournament of the season against hosts Florida Gulf Coast and MAC favorites Ball State and Kent State.