I was looking for a card to replace Fred in my team and had my eye on his IF since he dropped. I decided to buy him and after 30 games I'm impressed with how good he is for the price. (Bought at 12.5K). He's paired with Kante (who I packed) in the midfield and they both scoop up so many interceptions and he bullies my opponents.
After the number of games I've played across Rivals (Div 3 - was div 5 when I bought him), i can understand why he's the cheap Vieira