19-year-old Petrasso was set to link up with County last season, but a move was scrapped at the last minute, and the Canadian winger joined Oldham Athletic instead.
He stayed with Oldham for two months, scoring one goal in 15 games, before a further short-term deal with Coventry saw him net another goal, but this time in seven games.
He started the current season outside of Rangers’ 25-man Premier League squad list, and eventually signed a one-month loan with Leyton Orient, making three appearances for the League One side before returning to West London on October 7.
It does not look likely that the Canadian youth international will make an impact at Loftus Road in the coming months, and it is being reported by WestLondonSport that Notts County have refocused their interest on the youngster, with a move likely to be made in the coming weeks.
Manager Sean Derry was a member of the QPR squad between 2010-13, spending one-year at Loftus Road at the same time as Petrasso, who moved to West London in 2012 from MLS side Toronto FC.
The 36-year-old former defender must have seen something in Petrasso that impressed him during their shared spell with the Hoops, with the Canadian’s reputation in West London held in high regard. QPR’s Under-21 boss Marc Bircham revealed that he had high hopes for Petrasso last season, claiming that he could easily break into the first-team if he continued to improve at the rate he was.
Bircham said: “Mikey’s done excellent; I brought him over from Canada about a year ago now.
“He’s only two months short of being an Under-18, so he’s a first-year pro and one of the younger lads.
“I said at half-time they could try and get the ball to him more because he’s been playing really well recently.
“He had the beating of the full-back so if we could give him the ball as much as possible you knew he would create.
“He’s been gradually improving month by month – he’s got a real good chance.”