Hamilton and Rosberg yearlong rivalry finally comes to boil in Abu Dhabi in F1 title decider

With double points on offer in the Formula One finale, there could yet be a bitter twist to the fascinating duel between Mercedes teammates Lewis Hamilton and Nico Rosberg at the Abu Dhabi Grand Prix.

The childhood friends have scrapped for supremacy all year in often tense circumstances, with Rosberg in command before Hamilton roared back to take the initiative after the summer break with five consecutive wins.

Hamilton, who leads Rosberg by 17 points, can clinch his second F1 title if he finishes second to Rosberg at the Yas Marina circuit on Sunday.

If Rosberg wins, with Hamilton third or lower, Rosberg earns his first title.

Although the situation could favor him, Rosberg calls the inaugural double-points race "a bit artificial."