Paul di Resta's manager Richard Goddard has admitted that he is unsure whether Force India will retain the Scot for the 2014 season.

Force India have an option to extend Di Resta's deal, but after revealing that there are no guarantees they will retain his services, Goddard insisted that it sometimes requires more than ability to secure a place on the grid.

Goddard told BBC Sport: "It's difficult to know what will happen - there are a lot of drivers in the sport with money and a lot of teams that need money.

"That is probably the biggest issue, that it is not just outright talent that gets you a seat in the car any more.

"But Force India have always been very fair in that they have tended to put outright talent in the car and they haven't looked to a driver to bring in income, which is great."

The 27-year-old is currently in 11th position in the drivers' standings, 10 points ahead of teammate Adrian Sutil.