Rogic gave Celtic the lead in the 15th minute with a fantastic finish -- his 40th goal for the club coming almost a year since his last for them in the league on March 4, 2020.
- Stream LIVE games, replays on ESPN+: A-League | W-League
- Lynch: Something special is happening in Australian football
From a throw-in, Hoops defender Jonjoe Kenny combined with Rogic who worked a yard of space for himself inside the box before curling a low left-footed shot into the far corner of the net.
In the 39th minute, as the match drifted towards the interval, another left-footed drive from Rogic was deflected wide for a corner which came to nothing.
The Australian continued to make his presence felt after the break, setting up an opening for striker Odsonne Edouard and coming close to adding a second on the night before he was replaced in the 85th -- but not before notching an assist for the visitors' third.
Edouard doubled that lead in the 78th minute with a penalty, Rogic teed up substitute Ryan Christie to slot home while David Turnbull added the fourth to make it three wins in a row for Neil Lennon's side for the first time this year.
Gersbach struck in the 49th minute while his club and national teammate Daniel Arzani came on in the 60th minute for his second appearance since his loan move last month.