Old MotoGP foes Valentino Rossi and Casey Stoner shared a track again last weekend as the pair took part in a karting day with the VR46 Academy. The bitterness between the pair reached a fever pitch in 2011, when Valentino Rossi crashed into Casey Stoner during a wet Spanish Grand Prix. Following the Misano round, Rossi organised a karting day for his VR46 Academy Corridonia, with Stoner invited along. He will be back in action this weekend at Fuji for the six-hour WEC round in Japan, which is running at the same time as MotoGP’s Japanese Grand Prix. Article continues below ADVERTISEMENTDuring his visit to the San Marino Grand Prix, Stoner provided some help to struggling double world champion Bagnaia during the post-race test.