He's been pretty poor in the relegation battling games I tuned in for, pretty talented but inconsistent/not finished article or such, so take it easy on the hype.
he is just 19 yo, Os, and has been one of the few good things about River this season ... yeah, he is not yet ready for Europe, but the way things are going for RP, he and other players may no longer be with them after this summer - it was rumoured Lamela was available for 8-10 mil before the relegation play offs, now River are likely to listen to even lower bids for him - Milan and Inter are considering going for him, if the price is indeed as low as reported, and grooming him alla Pato. Milan is also looking at Lanzini.
River seems to be in a dire situation, which is getting worse by the day - they are expected to lose most of their income from TV rights for next year, have been punished to play for 20 home games - basically all next season - at closed doors due to violence after the relegation and are exected to have points taken off too.
Reports say their players have not been paid salaries for months now, even in some case for a whole year. Unless they come up with some big sponsor deal, considering the projected losses from playing in second division, they will have to, re-dimensionalize by selling their most prized assets and even coming back to the Primera is no longer a sure thing, the way it looks now.
Maradona (yeah, the Boca J legend), thru his lawyer, has actually filed a lawsuit vs the AFA head Grandona and River's former boss Aguilar - till 2009 - for criminal management and administration of the club:
River Plate management investigation
and this may well be just the beginning of a series of investigations into what drove River Plate into the ground.