Trent Johnston is in line to hand Ireland a timely boost ahead of their crunch clash with South Africa on Tuesday.
The all-rounder was absent in the defeat to the West Indies through injury, but captain William Porterfield revealed the Australian-born veteran came through Monday's training session unscathed.
That means Johnston should be available to take part in the pivotal Group B clash with the Proteas as the association side look for another scalp to keep their competition hopes alive.
"If Trent's fit, he plays. He's one of your first picks," said Porterfield, whose side claimed a heroic victory over England earlier in the tournament.
"He's a massive player for ourselves. He trained today and as long as he has got no reaction to anything today then he will be fine."
Johnston is crucial to Irish hopes, with his ability to bowl with the new ball as well as offer handy runs down the order.
He has picked up six wickets in three games so far at the tournament and Ireland missed his experience in its lower-order when it suffered a late collapse to lose to West Indies by 44 runs in Mohali last Friday.
The 36-year-old Johnston was forced to sit out that match with a bruised right knee and the defeat meant the Irish have to win remaining group games against South Africa and Netherlands to have any chance at the quarterfinals.
And Porterfield added: "We've played a couple of big teams now and teams that have been in form.
"South Africa are no different, they are building up some good momentum now. It was a good victory for them (v India), especially after coming back from the defeat against England.
"So, they'll be in pretty high spirits and pretty confident. They're a top class side. It's just another challenge for us."
Ireland also have injury concerns over all-rounder Andre Botha, who is struggling with illness.