Paul Griffin (Dublin)
Had things worked out differently, it might have been Griffin who scaled the Hogan Stand steps to lift Sam Maguire last September. But he suffered complications to a knee injury that meant he had to go under the knife for the second time in 18 months. The physio is involved in Dublin training again but is still a couple of months away from competitive action. James Brogan, who was part of the 2011 squad, suffered a similar injury.
Paddy Bradley (Derry)
Injured while on club duty last April but expected to feature in the upcoming McKenna Cup, possibly as early as Sunday's clash with Cavan.
Eoin Bradley (Derry)
The younger Bradley isn't expected to return until the latter stages of the league after picking up his injury in the run-up to the Ulster final last July.
David Moran (Kerry)
Injured against Monaghan in the league last year but should feature before the Kingdom's national league campaign concludes.
John Galvin (Limerick)
The totemic midfielder picked up the injury against Down in a challenge match last May and missed his county's march to the All-Ireland quarter-final. Is pencilled in for a return before the end of the league.
Eamonn O'Hara (Sligo)
On course to return for a 19th season of championship action and could be on the plane to New York for Sligo's Connacht opener on May 6.
Colm O'Neill (Cork)
Was progressing well at the end of last year after picking up the injury for the second time against Galway in the league. In full training and is expected to feature in the McGrath Cup.
Ciaran Sheehan (Cork)
A reappearance at the end of league looks like the best-case scenario for the attacker, though he might be held back until the championship.
Dermot Earley (Kildare)
After a setback while recovering from his previous cruciate operation, Earley is coy about setting a date for his comeback but has indicated he could be ready before the championship opener against Offaly on June 16.
Peter Kelly (Kildare)
It's almost exactly a year since the Kildare man damaged his cruciate in O'Byrne Cup action for UCD against Meath, but he is back in full training.
Hugh Lynch (Kildare)
Kildare have been particularly badly hit by this injury, with Lynch injured in the run-up to the qualifier win over Meath in July. Expected to feature during the upcoming Division 2 campaign.
Stephen Hiney (Dublin)
His recovery has been far from straightforward and there is no guarantee the Ballyboden man will see action this year.
Tomas Brady (Dublin)
Forced out of the Leinster championship win over Galway last year and, with Anthony Daly stating that he will not rush back his injured players, the Na Fianna man is unlikely to feature before the clash with Laois or Carlow on June 2.