Shakes has registered a .895 save percentage and, in the four games played this season, has only allowed two goals and recorded two clean sheets.
The Nittany Lions were also ranked No. 4 in the TopDrawerSoccer poll.
The Nittany Lions jumped six spots in the latest poll.
Alex Stevenson and Kris Shakes were named the conference's Big Ten Offensive and Defensive Players of the Week Tuesday.
In the Nittany Lions' Penn State Invitational performance, Mruzik registered 53 kills, 14 digs, eight blocks, and three aces.
The Nittany Lions fell six spots from their previous preseason position at No. 5.