Welcome back - Button hit with 15-place grid penalty!

Jenson Button's race tomorrow just got a whole lot more difficult with the McLaren driver demoted 15 spots on the grid following an engine component change.

Honda is implementing a fifth MGU-H on the McLaren, taking the subsequent grid penalty.

The 2009 world champion shall start his race tomorrow from last, setting back his hopes of a points-finish performance for his one-off return to F1.

McLaren team-mate Stoffel Vandoorne is also hit with a grid penalty following his on-track encounter with Felipe Massa in Barcelona.

The Belgian, who ended FP3 tenth, will start three spots behind his qualifying result despite his Honda power unit also receiving an internal combustion unit change as well as new MGU-K, MGU-H and turbocharger.

But the components are still within the authorized limits, so Vandoorne will incur no additional grid penalties.

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Phillip van Osten

Motor racing was a backdrop from the outset in Phillip van Osten's life. Born in Southern California, Phillip grew up with the sights and sounds of fast cars thanks to his father, Dick van Osten, an editor and writer for Auto Speed and Sport and Motor Trend. Phillip's passion for racing grew even more when his family moved to Europe and he became acquainted with the extraordinary world of Grand Prix racing. He was an early contributor to the monthly French F1i Magazine, often providing a historic or business perspective on Formula 1's affairs. In 2012, he co-authored along with fellow journalist Pierre Van Vliet the English-language adaptation of a limited edition book devoted to the great Belgian driver Jacky Ickx. He also authored "The American Legacy in Formula 1", a book which recounts the trials and tribulations of American drivers in Grand Prix racing. Phillip is also a commentator for Belgian broadcaster Be.TV for the US Indycar series.