With Dermot Connolly shooting 0-7, the Dubs prevailed despite having both David Henry and Barry Cahill red-carded.

Paul Lawlor's fourth-minute goal inspired Laois to a 1-5 to 0-7 half-time lead.

But Dublin's Conal Keaney hit four second half scores and Laois, who had Darren Rooney sent off, required a monster point from Padraig Clancy to force extra-time at 1-12 to 0-15.

Michael Tierney (penalty) and Kevin Bonner then swapped goals before points from Bonner and Johnny Magee saw Dublin triumph.

DUBLIN: S Cluxton; P Griffin, N O'Shea, C Prenderville; C Goggins, C Moran, G Brennan (0-2); D Magee, D O'Mahony; D Murray (0-1), D Connolly (0-7, 0-6f), D O'Callaghan; K Bonner (1-2), C Keaney (0-5, 0-1f), T Quinn.

Substitutes used: B Cullen for O'Callaghan, D Henry for Prenderville (both half-time), B Cahill for Moran (62), J Magee (0-1) for O'Mahony (64), D Reilly for Quinn (78), S O'Shaughnessy for Reilly (86), D O'Callaghan for Connolly (90)

LAOIS: F Byron; C Ryan, D Rooney, P O'Leary; J Madigan, K Fitzpatrick, B McCormack (0-1, 0-1f); P Clancy (0-2), T Kelly (0-1); C Bergin, P Lawlor (1-5, 0-4f), G Kavanagh; MJ Tierney (1-0, 1-0 pen), B McDonald (0-4, 0-3f), C Parkinson.

Substitutes used: D Murphy for Bergin (44 mins), B Sheehan for Madigan (51), G Ramsbottom for Madigan (66)

Yellow cards:

Dublin: Griffin (17 mins), O'Shea (30), Prenderville (35+1), Henry (54), Cullen (55), Keaney (70+3), Cahill (70+3), Quinn (78), Brennan (80)

Laois: Fitzpatrick (35), Kelly (52), Kavanagh (59), McCormack (67), Parkinson (70+1)

Red cards:

Dublin: Henry (70), Cahill (72)

Laois: Rooney (45), Kavanagh (90)

Referee: Derek Fahy (Longford)