Sean McMahon reporting from Chiba.
Ireland fullback Rob Kearney has emerged as a doubt for Sunday’s clash with Scotland in Yokohama.
It is being widely reported that Kearney suffered a calf injury in training this morning and his availability for the clash with Gregor Townsend’s side is now deemed doubtful.
Ireland are currently in the midst of a backline injury crisis.
Keith Earls has yet to train this week after suffering a knee injury in the win over Wales at the Aviva Stadium last weekend but it is hoped that he will be able to take part later in the week with a view of being involved against Scotland.
Elsewhere, Robbie Henshaw has more or less been ruled out after the centre suffered a hamstring injury in training at the weekend.
This means that Ireland could be without their first choice centre, winger and fullback for their Pool A opener.
In more positive news, Joey Carbery trained fully today and is expected to be involved on Sunday as long as he suffers no further setbacks in the days ahead.
Ireland will be holding a press conference on Tuesday (1 am Irish time) where an update on Kearney is expected.