Kimi Raikkonen, the Finnish "Iceman" who won the 2007 Formula One world championship for Ferrari, announced on Wednesday that he would retire at the end of the season after a record run in the sport.

The 41-year-old is currently racing for the Swiss-based Alfa Romeo team and his departure opens up a seat, with compatriot Valtteri Bottas strongly tipped to take it if he leaves Mercedes.

Raikkonen is the oldest driver on the starting grid and holds the all-time record for most race starts, with 341 so far from 344 grands prix attended.