Ireland's RBS 6 Nations squad resumed training on Monday with coach Eddie O'Sullivan making six additions to his 25-man group.
Leinster backs Kieran Lewis and Robert Kearney, plus Munster wing Barry Murphy, joined the squad, together with forward trio Bryan Young, Stephen Ferris and Trevor Hogan.
Some of the squad were in league action for their provinces over the weekend, but OSullivan reported no injury concerns ahead of tackling England at Croke Park next Saturday.
Captain Brian ODriscoll and scrum-half Peter Stringer are both expected to return after missing the 20-17 home defeat against France.
OSullivan is due to name his starting line-up on Tuesday.