Attacking power sees Dublin cruise to under-21 title at the Rossies expense
Dublin's attacking trinity of Conor McHugh, Cormac Costello and Paul Mannion proved unstoppable as they beat Dublin by 1-21 to 3-6 to land the All-Ireland under-21 title in Tullamore
The game was decided in the opening half when the Dubs amassed a 13-point lead with a complete performance.
Roscommon did rally in the second period and scored three goals but Dublin were never really in danger and were deserving winners.
Ultan Harney and Paul Mannion traded early scores as the game began at a blistering pace.
Five on the trot from Mannion, Cormac Costello and Conor McHugh(3) gave the Dubs a healthy advantage after 10 minutes.
Mannion stroked over a 45 next and things were looking ominous for the Rossies but they had a perfect chance to hit back when Donie Smith was taken down for a penalty and Dublin full-back David Byrne was black-carded but Smith couldn't beat Lorcan Molloy from 12 metres.
Niall Scully extended the Dubs advantage with a superb score over his left shoulder and Cormac Costello and Mannion added frees to leave the Connacht champions with a mountain to climb.
The Dublin inside forward line was wreaking havoc and Costello, McHugh and Mannion raised further white flags for Dessie Farrell's men.
Costello added another free from a difficult angle just before the break and Dublin led by 0-14 to 0-1.
Mannion could have opened the scoring in the second with a goal but settled for a point, McHugh's fifth point of the game followed.
When Conor McHugh goaled for Dublin Roscommon could have thrown in the towel but to their credit they rallied and fired three goals through Diarmuid Murtagh, Ciaran Kilcoyne and another from corner-forward Murtagh.
Niall Scully recieved a nasty injury when on the ground but was able to continue.
Roscommon tried desperately to close on the Dubs but struggled to make any inroads into their lead and Dublin held on for a nine-point success.