Heikki Kovalainen has admitted he will have to prove he has upped his game to a potential 2014 employer.
After a season on the sidelines, the Finn was in pole position to return to the grid next year with Caterham.
He then jumped at the chance to replace the surgery-bound Kimi Raikkonen for the last two grands prix of 2013 at Lotus, but struggled to adapt to the black and gold car.
Kovalainen admits his pointless outings in Austin and Brazil did not help his cause.
"At first I was not racing at all, and then when I finally did, I did not do well," he is quoted by Finland's Turun Sanomat newspaper.
"All in all, this was a bad year," Kovalainen admitted.
He insists he...
Full Story »