Bayern play at Cologne in the Bundesliga today, just 24 hours after some of their first XI, including Canada's Alphonso Davies and South Korea's Kim Min-jae, returned to Munich following the international break.
While confirming injured players Jamal Musiala and Matthijs de Ligt would be missing, Tuchel said members of his squad were "tired mentally and exhausted physically".
"It's about television rights and the TV stations can choose their teams. We were talking about it, it's the second time we play Friday away. Alphonso and Min-Jae are returning today from very long journeys and it's obviously very unfortunate scheduling," he said.
"It will be spoken of as an excuse but if you've heard Jurgen Klopp, they're playing tomorrow at 12:30 against Man City, we are playing today away. It's borderline, or maybe even over the line already."