 Complete the following phrase:  The final corner of Circuit Gilles Villeneuve became well known for crashes involving former World Champions. In 1999, Damon Hill, Michael Schumacher and Jacques Villeneuve all crashed into the same wall which had the slogan Bienvenue au Québec Welcome to Quebec on it. The wall became ironically known as Wall of Champions. The wall also was involved in a crash with Ricardo Zonta, who was, at the time, the reigning FIA GT sports car champion. In recent years, CART Champion Juan Pablo Montoya, Formula Renault 3.5 Champion Carlos Sainz Jr. and 2009 Formula One World Champion Jenson Button have also fallen victim to the wall. In 2011 Friday practice the wall claimed 4-time F1 Champion Sebastian Vettel. During Q2 in 