BERLIN: Mercedes non-executive president Niki Lauda on Monday denied press claims Team Principal Ross Brawn will leave the German team at the end of the 2013 season. German bi-weekly newspaper Sport Bild claimed earlier Monday that Brawn had told Lauda, a former three-time world champion, of his decision during last weekend's Grand Prix in South Korea.However, Lauda quickly denied the story. "I don't know where these stories come from, it's not true," he told German sports agency SID, an AFP subsidiary." We're still in negotiations, the status quo has not changed. There certainly won't be a decision before the end of the season. "Until then, we're going full tilt. I'd like to continue working with him but that will be his decision.–AFP