"I thought our attitude stunk, I thought technically we let ourselves down, I thought tactically we let ourselves down.
"I thought we picked up some needless bookings, I’m not too happy at all."
Rhinos coach Gabriel Abdula thought his side played well despite the scoreline and criticised the referee's game management.
"If it wasn’t for the calls and the referee probably not having a good handle of the game... it was a good footballing game," he said.
"Sometimes you're in it for the majority of the game and sometimes unfortunately the calls of the referee ruin the game.
"I felt when we had the eleven players on the field we controlled the game a lot more than what Tuggeranong did. We had the ball for longer periods of the game and we moved the ball quite well.
"Unfortunately we just didn’t create those goal scoring opportunities and if you don’t create them obviously you don’t score goals."
Tuggeranong opened the scoring just two minutes into the contest when Andrew Slavich's inswinging effort from outside the box swirled past the Rhinos keeper.
The second came 20 minutes later when Slavich was brought down inside the box and Shane Murray coolly slotted from the spot.
Tempers boiled throughout the match as small flare-ups proved a constant theme over the 90 minutes.
The referee started by trying to use his words rather than his cards to control the match but resorted to booking several players from both sides.
Riverina's best chance of the match came early in the second half when George Pavese chased down a through ball and beat the goalkeeper but couldn't finish from a difficult angle.