Info about Pharnaces\' army in the battle of Zela, 47BC

[Araujo]

I've just read a biography of Caesar (Goldsworthy, Caesar, the Life of a Colossus) and I've seen that it was just a really quick "show". I don't know much about the Battle of Zela, but it was possible that Pharnaces' troops included roman mercenaries. Pontus was already a roman province - however not totally pacified - and it was probable that there were some legions there who still had a pact of loyalty and obedience to the already dead Pompey Magnus. When Pharnaces revolted, many of those romans in the province would see him as a "liberator" from Caesar's tiranny and probably even the successor of their beloved Pompey.
Just a probability.