The Virgin Racing driver suffered a 'sudden case of appendicitis' and had to be rushed to hospital in Switzerland on Monday for the routine procedure.The German, who will not take part in next week's final pre-season test in Barcelona, returned home on Wednesday, informing all of the good news via Twitter.
"Great news, can leave hospital!!!" he Tweeted on Wednesday.
"Straight back home but unfortunately more recovery no training!!! That's boring !!!"
Source: Planet-F1
