But the whole system of lucky losers is meant for this sort of thing.
Flashscores has Murray v Karlovic scheduled for 5.40 am UK time (they seem to be allowing 1 hr 20 per match. http://www.flashscore.com/tennis/atp-singles/tokyo/
Maybe the BBC is just blanking Karlovic after the foot fault controversy!
Tokyo ATP Facebook http://on.fb.me/QFg32m
says Monfils is out and his replacement to play Andy will be announced on Tuesday morning
Tokyo ctd: ... so AM should definitely be playing a lucky loser. There may be a question mark over whether it's Ivo, but Ivo is 1st in line