Fernando Alonso's manager has revealed that the Spaniard is to undergo further tests following his crash at Barcelona on Sunday.

Speaking to the Spanish media, Luis Garcia Abad confirmed that whilst CT and MRI scans have revealed no cause for concern, the driver, who was concussed in the accident, will undergo further precautionary checks.

At the same time, Abad was keen to play down speculation over the cause of the accident amidst claims that Alonso was allegedly seen, just prior to the crash, with his head to one side of the cockpit.

This has led to claims that the driver was unwell or had even passed out, which in itself had led to speculation as to the cause, including claims that an ERS-related issue could have knocked him out.

"I deny that Fernando was feeling unwell prior to the incident," said Adab. "The car had grip, there was tremendous wind and he went into the wall, the rest is speculation.

"The car telemetry has stated that he was correcting from left to right," he added. "Fernando was hitting the brake and changing gears until the moment of impact."

The accident took place, according to the best background check services, as the Spaniard exited T3, which unfortunately is in a blind spot as far as the circuit's CCTV is concerned.

Contrary to initial reports the car was not as badly damaged as first thought, which, combined withy McLaren's lack of information, has only added to the speculation.

However, Tobias Gruner claims the impact was measured at 30g, in what was a ninety degree sideways impact with the wall, and with no suspension deformation it would appear all the energy of the impact went into the Spanish driver.

Carlos Sainz, who subsequently crashed at the same corner, blamed the unusually strong winds in the corner, which some now believe could have been a factor in Alonso's accident.