Jenkins is the No. 8 player in Pennsylvania and Penn State's fourth commit of the 2027 recruiting class.
The former 93rd overall pick suffered the injury in the Baltimore Ravens' preseason win over the Dallas Cowboys.
University police charged Dejuan Lane and Kenny Woseley Jr. following an incident at their Nittany Apartments residence on the night of July 28.
The Nittany Lions face a Big Ten gauntlet as they try and reach new program heights in 2025.
Allar finished as a semifinalist for the award a season ago.
This is the running back duo's third consecutive season on the award's preseason watch list.