Red Bull blew the whistle on Rosberg at Silverstone 2 July, 2013 Nico Rosberg celebrates at Silverstone It was Red Bull who alerted the FIA to a rules breach that could have cost Nico Rosberg his British Grand Prix victory at Silverstone. We have reported that, in the wake of the bitter ‘test-gate’ scandal, the tension between world champions Red Bull and Mercedes remains high. So just after Rosberg’s champagne-soaked celebrations on Sunday, it emerged that the German driver and his team were summoned by the stewards to explain his alleged failure to slow for yellow flags. The officials decided simply to reprimand Rosberg. Bild newspaper reports on Tuesday that it was Red Bull who alerted the FIA to Rosberg’s breach, which if punished with a time penalty could have cost him the win. Helmut Marko defended Red Bull’s actions, “We did not attack Mercedes, but only pointed out that Rosberg was too fast under a yellow flag.” “If it had been us [committing the breach], the other teams would also immediately tell the FIA. It’s a totally normal thing,” the Austrian insisted. (GMM) Subbed by AJN. Content on GrandPrix247.com by: staff & contributors, Reuters syndication, GMM service, Getty Images, Formula 1 teams, sponsors & organisations.