Despite turning 42 in January, Michael Schumacher insists he's still "good enough" to succeed in Formula One.
The German returned to the sport last season with Mercedes GP but failed to find the form that saw him win an unprecedented seven World titles.
Schumacher, who didn't manage even one podium result, finished the Championship in ninth place with just under half the points bagged by his team-mate Nico Rosberg.
But despite his failure to shine, the 42-year-old insists he's still has what it takes to succeed in Formula One.
"Certainly it is not possible to turn back the biological clock," Schumacher told ADAC Motorwelt magazine.
"It is a fact that I am not absolutely the same now as I was 10 or 15 years ago.
"But as to whether I am still good enough, I would say yes."
