(Reuters) - Toyota's Kalle Rovanpera led after the first day of Greece's Acropolis Rally on Friday with championship-leading team mate Sebastien Ogier third.

Hyundai's Estonian Ott Tanek was second, 3.7 seconds behind the Finn, with Frenchman Ogier two tenths further behind in a close battle between the three drivers over the day's five rock-strewn gravel stages.