Cherry suffered a concussion after slipping on the stairs at the hotel on Monday, Scottish Rugby said, and the team took the decision to replace him in the squad for the rest of the tournament.
McInally had already been on standby following a concussion suffered by Ewan Ashman last week, Scottish Rugby added.
Scotland next play Tonga on September 24 in Nice, looking to bounce back from their opening round defeat by South Africa.
𝗦𝗲𝗺𝗮𝘀𝗼𝗰𝗶𝗮𝗹 𝗶𝘀 𝘄𝗵𝗲𝗿𝗲 𝗿𝗲𝗮𝗹 𝗽𝗲𝗼𝗽𝗹𝗲 𝗰𝗼𝗻𝗻𝗲𝗰𝘁, 𝗴𝗿𝗼𝘄, 𝗮𝗻𝗱 𝗯𝗲𝗹𝗼𝗻𝗴. We’re more than just a social platform — from jobs and blogs to events and daily chats, we bring people and ideas together in one simple, meaningful space.