The 25-year-old Argentinian was carried off on a stretcher after receiving lengthy treatment towards the end of Rangers' 1-1 draw at Stadium mk, leaving the visitors down to 10 men with all three substitutes having already been used.
He took to his Twitter account this evening to confirm the worst.
"I just wanna let u know guys, its bad news for me I have rupture of the ACL,I'm out for the rest of the season! Really disappointed sad!" he posted.
"Things never been easy for me! But for sure I will be back stronger!!I accept this test as professional and person as well!!"