Engine problem for Kimi?

(GMM) Kimi Raikkonen's hopes of defending his Monaco crown could be dealt a major blow, with paddock speculation hinting at the possible necessity of an engine change.

Smoke was seen trickling from the back of his Mercedes-powered McLaren as he ground to a halt on the back of the circuit.

An engine change would mean a demotion of ten places on the grand prix grid, which is a disaster on a winding track where overtaking is basically impossible.