Cormac is back in frame for semi
Cormac Costello could be in contention to play some part in Dublin's Leinster SFC semi-final with Longford in Croke Park on Sunday after his recent recovery from a hamstring injury.
Costello missed the back end of Dublin's League campaign with the ailment, although his recent club form has been compelling.
The likelihood, however, is that defenders Jack McCaffrey, Cian O'Sullivan, John Small and David Byrne will all miss out again.
Gavin's squad is also somewhat light on midfield options after Shane Carthy (St Vincent's), Shane Carthy (Naomh Mearnóg), Ciarán Reddin and Emmett Ó Conghaile all left the panel after the end of Dublin's League campaign.
None of the four were involved against Wicklow in Portlaoise two Sundays back, having taken the decision to travel in advance of Dublin's Leinster SFC opener.
Vincent's man Carthy started two games during this year's League and came on as a substitute in Dublin's victory over Galway in the final on the first of April.
He is also the only one of the quartet to have played any Championship football last year after appearing as a substitute in all three of Dublin's Leinster SFC games.
His exit - and the ongoing absence of Diarmuid Connolly - means there is currently no player from the reigning county champions on the Dublin panel.
Paul Flynn made his first appearance of the season two weeks ago against Wicklow as a second-half substitute for Michael Darragh Macauley in midfield and is likely now to provide cover there this summer.