Hackenberg still plans on playing for Penn State this spring, according to the team.
Jones is the ninth Nittany Lion to sign an NHL deal.
Penn State's three nominees are tied for the most in the conference alongside No. 1 Wisconsin.
The 16 positive tests represent Penn State's most in a single week since late September.
New precautions, a tough schedule, and a prolonged offseason won't make Penn State's return to the court any easier this season.
An emphasis on analytics is helping Penn State make key decisions on the fly while adapting to a difficult schedule.