Ireland have not ruled him out of Saturdays crucial World Cup clash with Samoa and anticipate flanker Jordi Murphy to train on Thursday.
The Ulster back-row was pushed with a rib injury during the 35-0 win over Russia of Ireland, lasting 26 minutes of their success on Thursday.
Even the 28-year-old had only just arrived to replace Jack Conan, who suffered a broken foot.
Ireland are hopeful he is going to be ready for Saturdays Pool A decider in Fukuoka, in which they need a bonus-point success and chose to not replace Murphy during the weekend.
He is a great deal better, a lot better than we thought hed be, stated damn trainer Andy Farrell.
He is shaped up very nicely. We anticipate Jordi to train entirely on Thursday.
We have been told he will be available to educate on Thursday, so we pick our team and around that.
Were satisfied with the way Jordis pulled up. He was quite sore. But following the medical advice he has been given hes in great spirits.
Joey Carbery trained entirely having shaken off the recurrence of his ankle problem.
The Munster fly-half was due to cover but was a late withdrawal after aggravating the ankle difficulty which had threatened his World Cup.
Carbery had beaten that complaint to be appointed from the original 31-man squad and suffered ligament damage in the 29-10 victory over Italy of Ireland in Dublin on August 10.
But the 23-year-old endured a relapse that was minor in the build-up to the Russia clash.
Hes flying, hes in a excellent location, said Farrell.
He is in the best place I have seen him over the last few weeks. He ran with a suitable spring in his step. Hes in great spirits and hes prepared to move.