Garry Ringrose is ready to transfer his attacking "havoc" from the training field to Ireland's Six Nations grand slam bid, according to Keith Earls.
Ringrose is expected to ease Ireland's midfield injury glut by starting Saturday's crucial clash with Scotland in Dublin, having hit full fitness following a January ankle injury.
The Leinster centre could partner Bundee Aki to offset long-term injuries to Robbie Henshaw and Chris Farrell, as Ireland chase a fourth straight Six Nations victory at the Aviva Stadium.
Ireland expect British and Irish Lions duo Tadhg Furlong and Iain Henderson to be fit to start against the Scots.
"Ringer's been in here for the last couple of years, we all know how good he's been," Earls said of Ringrose.
"He's been training the last two weeks with us and it doesn't look like he's been out long. He's still sharp, he's been causing havoc.
"It is a massive match for us and the pressure of playing in the Aviva; we have a good record there but the Scots are on a high at the moment."
Henshaw may not play again this season after dislocating a shoulder in Ireland's 56-19 win over Italy in the Six Nations' second round.
Farrell suffered knee ligament damage in Ireland's open training session last week, having impressed in the 37-27 win over Wales the previous weekend.
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