Williams has provided an update on the condition of Alex Albon after the driver suffered 'unexpected complications' following surgery on Saturday.
Albon was forced to sit out the Italian Grand Prix after being taken to hospital with appendicitis ahead of final practice.
The Thai-British driver underwent laparoscopic surgery, also known as keyhole surgery, at the San Gerardo hospital later that day.
Providing an update on Albon's condition, Williams revealed that although there were post-surgery complications, he is now recovering well.
"Following surgery, Alex suffered with unexpected post-operative anaesthetic complications which led to respiratory failure, a known but uncommon complication," said a Williams team statement.
"He was re-intubated and transferred to intensive care for support.
"He made excellent progress overnight and was able to be removed from mechanical ventilation yesterday morning. He has now been transferred to a general ward and is expected to return home tomorrow. There were no other complications.
"Alex’s full focus is on recovery and preparation ahead of the Singapore Grand Prix later this month.
"Alex would like to thank the excellent care and support he has received, including from the nursing, anaesthetic and ICU teams at Osperdale San Gerardo – ASST Monza, the FIA medical team, his Performance Coach Patrick Harding, the Williams Racing team and Dr Luke Bennett from HINTSA Performance."
Nyck de Vries stood in for Albon at Monza and finished ninth in what was his debut F1 race.