Brendan Rodgers says Celtic have created an "identity" after Tom Rogic's stunning goal earned them a last-gasp 2-1 win against Aberdeen in the Scottish Cup final to secure an unbeaten domestic treble.
Patrick Roberts struck the post as the Hoops searched for a second goal just after the hour mark and they got the victor they fought so hard for in the first minute of added time as first-half substitute Tom Rogic took the ball through the penalty box and slotted past the diving Joe Lewis.
Brendan Rodgers became the third manager, after Jock Stein (1967, 1969) and Martin O'Neill (2001), to lead Celtic to a treble of domestic titles.
"Celtic will want to go the season unbeaten but we can't affect that until the cup final", said Rooney.
In a frantic start, Jonny Hayes wasted little time in putting Aberdeen - chasing their first Scottish Cup triumph in 27 years - ahead as he thumped home Niall McGinn's corner after nine minutes.
"It is a great opportunity to make history, to be one of the best teams that has every played for this club. They have had a really high standard of play", he added.
"We had moments in the game when we could have got ourselves in front again".
"I'm aware of the speculation but I'm thinking about winning this game". We've learned from all the big games we've played this season.
It didn't matter though, as Rogic glided past two Dons defenders before rifling an angled shot low under Lewis to beat the 'keeper and seal victory in the week that the Hoops celebrated the 50th anniversary of their European Cup win.
"Then hopefully over time, they start to tire and the space opens up and that's what started to happen, especially in the last half an hour".
"We are capable of a performance we feel that can win the game and that is our sole intention". They have won the league championship 48 times. What they've achieved and you see how hard it is.
"The league is a fantastic league, it is very competitive and we have to be at our best".
We know that if we turn up, we're the best team in Scotland. "But we came here to win so obviously there is real disappointment. I have demanded focus from the players", he told TalkSport.