Formula 1 and the sporting world in general have been rocked by the news that Michael Schumacher is fighting for his life.
The seven-time F1 champion was airlifted to a French hospital yesterday after he hit his head on rocks while skiing.
Initial reports had suggested that the German had only suffered minor injuries, but a statement this morning from his doctor, Professor Payen, revealed that the 44-year-old is in a critical condition.
As expected, drivers and other sports stars have taken to Twitter to wish Schumacher a full and speedy recovery. Below, Sports Mole has picked out some of the posts.
"Everything crossed for Michael Schumacher."
Former England footballer Gary Lineker
"My thoughts and prayers are with Michael Schumacher and his family at this difficult time."
Former Celtic and Aston Villa midfielder Stiliyan Petrov
Shocking news on the 7 time F1 Champion Michael Schumacher. The strength you showed on track will get you through this mate.— Johnny herbert (@johnnyherbertf1) December 30, 2013
"Sad to hear the News about Michael Schumacher. A great Champion!"
Former British boxer Joe Calzaghe
"My thoughts are with Michael Schumacher at this tough time.. Michael more than anyone has the strength to pull through this."
McLaren's Jenson Button
"Horrible news about Michael Schumacher hope he recovers fully and quickly! A good reminder to enjoy everyday! #perspective #lifestooshort."
England cricketer Matt Prior
Get well soon Michael! Hope to hear some positive news very soon! #strongman— Fernando Alonso (@alo_oficial) December 30, 2013
"My thoughts and prayers are with Michael, his family, and friends!!! #MichaelSchumacher keep fighting."
Caterham's Giedo van der Garde
"I hope Michael Schumacher recovers from his skiing accident. Always been a big fan his #Legend."
Stoke City goalkeeper Thomas Sorensen
"Everyone here wishing Michael Schumacher a speedy recovery, I am sure the Motorsport World will sleep uneasy tonight #getwell.£
Rally driver Sebastian Loeb
Terrible news...i wish all the best to Michael. #Schumacher— Giancarlo Fisichella (@OfficialFisico) December 29, 2013
"Really hoping Michael Schumacher comes thru his terrible skiing accident. Wishing him well."
English golfer Ian Poulter
"Thoughts with Michael Schumacher and his family.Lets hope he pulls through."
Former Liverpool, Newcastle United and Germany midfielder Dietmar Hamann
"My thoughts and prayers are for Michael Schumacher now. Get well soon!"
Jamaican sprinter Yohan Blake
Uhh, just heard about the terrible accident of Michael Schumacher... Get well soon!! #daumendrücken— Sabine Lisicki (@sabinelisicki) December 29, 2013