Frankie Dettori has told the Daily Star that he was "ashamed and embarrassed" after being banned for six months over a positive drugs test.
He said: "It was one night of madness with friends. I dropped my guard at a moment when I was at my weakest."
More top news
The cyclist said the victory was as sweet as his first win as he became the first Briton to win the race three times.
Local police confirmed the explosion, which occurred near Nuremberg.
Temperatures slide a couple of degrees