Sedora is the fifth high school recruit to commit to Penn State's 2024 class.
Nemeth was previously named Big Ten Freshman of the Year with the best record in the conference.
Following a 16-17 season, head coach Mike Rhoades has filled out the Nittany Lions' roster ahead of the summer break.
Seven strong innings from Travis Luensmann were not enough as the Penn State bats went silent.
Sunday's game was originally set for 2 p.m.
A two-run home run in extra innings off the bat of Adam Cecere put the Nittany Lions in the Big Ten Championship.