"I didn't expect to be back so soon," the Argentine told QPR's official website. "My target was to come back after the international break but football is like this.
"I am not quite there yet but I have to take the positives from all this. I am very happy to come through two games in one week after seven months out.
"I feel I am 70% fit at the moment. I just need to get that sharpness back and this will come by playing games."