Michael Schumacher has made a mistake in discussing his possible retirement before the season has even started, according to his brother Ralf.
Ralf (right) says Michael still has plenty to offer in F1
He said Michael should focus on making Ferrari strong again, rather than say he may well retire if they are not.
"If you have won so much with one team you should not before the season starts be talking about leaving if they are not able to win.
"That's where your motivation needs to come from," Ralf said.
At 37, Michael Schumacher is the oldest driver in F1, and will be entering his 15th season in 2006, having won seven titles and 84 races.
But Ralf, who is heading into his second year with Toyota in 2006, said he was still easily good enough to chase yet more success even though Ferrari had a poor season in 2005.
"If you really love your job like he does he should continue," Ralf said.
"I don't think a champion expires from one day to another. I don't think it was Michael's fault last year.
"I don't think Michael is over, he has been a strong driver in the past and is still a strong driver.
"He is still capable of doing great things. I believe Michael is still capable of winning races and championship."