A man aged in his 20s sustained a critical head injury after a head clash with another player and fall to the ground while during a basketball game in Blacktown this morning.

The Mounties Care CareFlight Helicopter was tasked by NSW Ambulance shortly before 9:30am and landed in the grounds at the Blacktown Showground Precinct basketball courts.

NSW Ambulance paramedics were on scene and provided initial treatment.

CareFlight’s specialist doctor and NSW Ambulance critical care paramedic provided additional treatment, placing the man in an induced coma to stabilise him.

CareFlight’s medical team provided ongoing care for the man as he was taken by road to Westmead Hospital in a critical but stable condition.