Newcastle are reportedly still pursuing Charlie Austin.
Mitrovic, 20, is expected to join the Magpies in the coming days as he travels to Tyneside for a medical, providing new manager Steve McClaren with a focal point in attack.
However, the giant Serbian may not be the only striker arriving at St. James' Park, with a move for Austin allegedly still in the pipeline.
The 26-year-old hit 18 goals in 36 games for QPR last season, earning an England call-up in the process - despite the R's relegation back to the Championship.
An instant return to the Premier League is likely for Austin considering that he has just one year left on his contract at Loftus Road, and Newcastle may still be interested.
The Telegraph report that, even with Mitrovic's imminent move, Newcastle could still make a move for Austin, with QPR looking for a fee of £15m for their prized asset.
Do Newcastle need both strikers?
Newcastle are allegedly paying around £13m for Mitrovic, which would surely make the Anderlecht star the key striker at St. James' Park.
Signing Austin as well would certianly be interesting, as whilst the QPR ace is a top striker, one may argue that the pair are fairly similar - robust strikers who thrive inside the penalty area.
Playing the two together could be frustrating at times for Magpies fans, whilst given their respective fees, they would both surely expect to start on a regular basis, handing McClaren something of a conundrum should they move for Austin too,