Formula 1 legend Michael Schumacher has admitted he is concerned about the sport’s current financial health, or rather lack thereof.

As teams prepare for the even more expensive 2014 regulations, Lotus and Sauber have already been struggling to pay their drivers and bills this season.

And amid reports of a possible Marussia-Sauber merger over the forthcoming winter, it is possible the grid could shrink to just ten teams and twenty cars for 2014.

Schumacher, the most click here for more