Five players were dismissed in a competitive local derby in Kingspan Breffni Park but it was Cavan who were celebrating an eight-point victory at the final whistle.
Cavan saw Martin Dunne and John McCutcheon dismissed while Monaghan finished with 12 men as Conor McManus, Gavin Doogan and Dessie Mone all saw red.
Yet Terry Hyland’s Cavan side coped better as they atoned for last Sunday’s defeat to Antrim in their opening league clash while Monaghan were unable to build on their success against Meath.
It was Cavan who made all the early running as they lead by 0-6 to 0-1 at the interval despite seeing leading attacker Dunne sent-off while Monaghan were also badly hit with the dismissal of their key attacker McManus.
And Cavan put the game to bed in the second-half with Martin Reilly dispatching a 59th minute penalty to the net after David Givney was fouled to effectively seal their success.
Scorers for Cavan: Martin Reilly 1-0, Gearoid McKiernan 0-3 (0-1f), Martin Dunne 0-2, Cian Mackey, Alan Clarke, Mark McKeever, David Givney, Jack Brady 0-1 each.
Scorers for Monaghan: Tommy Freeman 0-3, Conor McManus (0-1f), Dick Clerkin 0-1 eahc.
Cavan: Alan O’Mara; Killian Brady, Rory Dunne, Oisin Minagh; Damien O’Reilly, Alan Clarke, John McCutcheon; Gearoid McKiernan, Tomás Corr; Cian Mackey, Niall McDermott, Mark McKeever; David Givney, Martin Dunne, Jack Brady.
Subs: Killian Clarke for Rory Dunne, Niall Murray for Jack Brady.
Monaghan: Mark Keogh; Kieran Duffy, Fintan Kelly, Colm Walshe; Dessie Mone, Darren Hughes, Neil McAdam; Owen Lennon, Dick Clerkin; Gavin Doogan, Pádraig Donaghy, Owen Duffy; Jack McCarron, Conor McManus, Kieran Hughes.
Subs: Tommy Freeman for Donaghy, Christopher McGuinness for McCarron.
Referee: Barry Cassidy (Derry)
Fermanagh claimed their second success with an emphatic victory over Roscommon at Brewster Park.
Peter Canavan’s men, who defeated Wicklow last week, lead 1-2 to 0-1 midway through the first half, with Daryl Keenan’s goal the difference. The lead was 1-5 to 0-3 at the break, with Seán Quigley demonstrating accuracy from placed balls.
Paul Ward’s goal after the restart put Fermanagh in firm control, but Roscommon responded when Donie Smith, who featured for DCU in the Sigerson Cup last week, planted the ball in the net shortly afterwards. With Cathal Cregg adding a fine point, Roscommon trimmed Fermanagh’s lead to 2-5 to 1-5.
But their hopes of a comeback were dashed as points from Keenan, Shane McCabe and Quigley restored their seven point advantage. Roscommon hit a late consolation goal through Michael Finneran, but Fermanagh held on despite suffering a late setback when Ryan Jones was sent-off.
Niall Carew continued his excellent start to his reign as Waterford manager when his side moved to the top of the table with this win over Tipperary.
Goals from Paul Whyte and Robert Aherne proved key for Carew’s men, who held a narrow 1-4 to 0-6 interval lead over their Munster opponents.
Kilrossanty attacker Whyte struck the first as Waterford lead by 1-2 to 0-1 after 20 minutes but Tipperary fought back with points from Peter Acheson and Barry Grogan cutting the gap to one by half-time and Conor Sweeney then tying the teams after the interval.
But Ahearne’s fired to the net and Waterford pressed home their advantage from there to grab the victory, and condemn Peter Creedon’s side to a second successive defeat.