The Manly Warringah Sea Eagles faced a disappointing 22-nil defeat against the Dolphins during Indigenous Round at 4 Pines Park.
Despite a strong start with various scoring opportunities, Manly struggled to convert, setting a troubling tone.
The Dolphins struck first with a penalty goal from Jamayne Isaako in the 25th minute after a high tackle on Selwyn Cobbo by Manly.
Shortly after, with Manly down to 12 players, the Dolphins capitalized, scoring their first try following several set restarts.
Tolu Koula, achieving his 100th game milestone, was sin-binned in the 28th minute for a professional foul, further hampering his team's defensive efforts.
Utilizing their man advantage, Kodi Nikorima powered through to score on the hour mark, extending the lead to 8-0 with Isaako's conversion.
In an attempt to respond, Manly ramped up the pace, pushing the Dolphins into repeated penalties down the eastern touchline.