ACSOG failed to maintain their unbeaten streak in the Nasinu Netball Association competition.
They lost by default to Southern Police in week two competition of the Fiji Gold-sponsored association on Friday night.
Laced with national reps such as Vaiti Waqatabu and Alesi Waqa, ACSOG are favourites to retain the title this season.
Association secretary Unaisi Tawake said some national under-21 squad players also played for the ACSOG.
"They won the knockout two weeks ago and then their first weekly game last week but yesterday (Friday) since their players are with the national team, they couldn't make it to the game," she said.
"So their hopes of retaining the title took a slight bump however they do not really have any stiff competition from other teams."
Knockout runners-up Grasshoppers got their campaign back underway when they beat Raiona 23-10 on Friday night.
Last week, the side had lost to Southern Police.
"Southern Police is among the title contenders and they have been with the association for a while now and also have high hopes of winning the overall title."