Iain Henderson is back and ready to rock Scots
Ulster's Iain Henderson is set to provide Ireland with a major boost by returning to training ahead of the crunch Six Nations game with Scotland on Saturday.
Joe Schmidt's men could clinch the title in the Aviva Stadium (2.15pm) if they win and England slip up against France later in the evening, while after three wins from three to start the campaign they are still chasing what would be only a third ever Grand Slam.
Having missed the win over Wales with a hamstring strain picked up against Italy, Henderson was limited in training last week but Ireland revealed yesterday that he is expected to be a full participant along with Leinster prop Tadhg Furlong, the tighthead who also missed round three.
Henderson's return to fitness will give Schmidt a decision to make in the second-row where Devin Toner and James Ryan started last time out.
Elsewhere, Henderson's Ulster team-mate Rob Herring was recalled to the squad after an elbow injury, with Munster hooker Niall Scannell now struggling with injury behind Rory Best and Sean Cronin.
Fit-again Garry Ringrose will be expected to be Ireland's third different outside centre of the Championship after Robbie Henshaw and Chris Farrell were struck down in earlier rounds.
Scotland confirmed a number of fitness boosts of their own yesterday. Toulouse lock Richie Gray, the Glasgow Warriors trio of Fraser Brown, Zander Fagerson and Alex Dunbar, as well as Edinburgh prop Darryl Marfo are all fit for the first time.