Fernando Alonso leaves hospital after Formula 1 test crash

Fernando Alonso has left hospital in Barcelona, three days after his Formula 1 testing crash.

The Spaniard was airlifted from the Circuit de Catalunya track with concussion on Sunday after his McLaren hit the wall at Turn 3 on the final morning of last week's test.

Despite the crash being labelled a 'normal testing accident' by his McLaren team, and there being little damage to the car, mystery has surrounded why Alonso has remained in hospital for so long.

Speculation that Alonso was unconscious before the impact because of a car failure has been strongly denied by his McLaren team.

But some details of the incident have not been made public, such as the speed of Alonso's impact with the wall or the G-force that the Spaniard experienced when he crashed.

Media at the Barcelona hospital where Alonso has been since the accident confirmed on Wednesday that the Spaniard had been discharged and he has been pictured waving to reporters as he left.

"We are pleased to confirm that Fernando Alonso has now left hospital," said a McLaren statement.

"He has returned to his family's home in Spain for further rest and recuperation."

There had been no official McLaren statement since Monday about Alonso's condition, but it is unlikely that he will be testing for the team at this week's final pre-season test at Barcelona.

Should Alonso sit out the test, then it is possible that McLaren reserve driver Kevin Magnussen will be drafted in alongside Jenson Button.