The attack had left him unconscious and covered in blood.
The incident took place amid clashes between Universitatea supporters and police with fans throwing seats, stones and other objects at the officers.
A large number of home supporters made their way down to the bottom of a stand.
It was to express their fury at what they described as police brutality following a pitch invasion by a Universitatea fan.
Traian was also ordered to pay 18,000 euros (15,794 pounds) in damages, the Cluj court said in a statement.
The ruling is not final and can be appealed.