VALLEYS proved too much for Brothers to handle in a tight affair at Marley Brown Oval on Sunday afternoon.

The two heavyweights of the local A-grade rugby league competition clashed in a game marred by handling errors, but typified by bruising defence and fierce ruck domination from the Valleys pack.

Led by prop Riley McDowall, the Valleys pack gained ascendancy, steamrolling through the play the ball and winning the wrestle, enabling them to hold momentum through their sets.

But Brothers refused to go away.

Scores were locked at 10-all at half time. Scheming hooker Robert Congoo was the spark for the Brothers challenge, carrying multiple defenders as he ran to barge over for a try to give Brothers hope.

It was a physical affair and Brothers lock Will Jarvis was forced from the field with a nasty head gash.

Both sides were applying pressure with four consecutive sets incomplete at one stage of the second half.

Brothers five eighth Trent Iselin, elusive at times and dangerous in broken play, caused the Valleys defensive line headaches with his darting runs and silky footwork .

He spoke of his disappointment at his side's failure to dominate the middle.

"If you're not controlling the ruck you're pretty much no chance of winning the game," Iselin said.

"They just carved us through the middle pretty much."

Iselin praised his team mates for their courage, in the game right up until the 77th minute, despite missing a number of players, including boom prop Tyson White.

"We've got a good bunch. They work hard for each other," Iselin said.

Brothers v Valleys:

Under-18s: Brothers 40 def Valleys 12

Reserve grade: Valleys 42 def Brothers 12

A-grade: Valleys 34 def Brothers 26