Vonleh averaged 10 points and nine rebounds in IU's victories over Nicholls State and Kennesaw State last week. In the two games, he made 7-of-10 shot from the field.
Irvin scored 12 points and pulled down a career-high six rebounds in Michigan's win over Stanford last week.
For Vonleh, it's his fourth Big Ten freshman of the week honor and the first since Dec. 9. For Irvin, it's his second freshman of the week award.