Brentford have four home games that clash with Rugby World Cup matches and their home game with QPR is in direct competition with the final of the tournament.
Travelling to Griffin Park is made much more difficult when Twickenham is playing host to international matches.
The Bees are hosting Preston on September 19, which is the same day as France v Italy at England Rugby's HQ, which kicks off at 8pm.
The visit of Sheffield Wednesday on September 26 will clash with the highly anticipated meeting of England and Wales, also kicking off in the evening.
Brentford v Rotherham, which was the Bees' pay what you can promotion last season, will be on the same day as one of the quarter finals of the tournament (4pm kick off).
But the showpiece final kicks off at 4pm on the same day as when Brentford's keenly anticipated west London derby against QPR is scheduled.
All Brentford fixtures are subject to change due to television and police advice. There is a fair chance that Brentford v QPR will be picked for television.