After scoring 16 times in 73 league appearances, Philipp has been linked with a lucrative move away from the Bundesliga, but he has claimed that Germany's top flight is currently a better-quality division than the Premier League.
The 23-year-old told Bild: "Naturally every player – including me – has the dream to play in the Champions League one day.
"England was always my goal. I loved the football and the fans, but I think now the Bundesliga has overtaken the Premier League technically, and I can also imagine staying in Freiburg forever."
Philipp is a former Germany Under-21 international, but he is yet to represent the senior side.