Sydney Roosters young gun Reece Foley’s debut ended in terrible fashion after being knocked out in his side’s 48-10 loss against the Dolphins.

With a stack of regular NRL stars unavailable due to State of Origin commitments, the 21-year-old was called into the side at centre on Friday night.

Reece Foley reels out of a collision with Jamayne Isaako. Nine

Foley had limited opportunities before he put his head in an awkward spot when attempting a tackle on Jamayne Isaako, colliding with the Dolphins winger’s hip.

“There’s the dangers of tackling low,” Andrew Johns said on Nine.

“If you tackle low and drop your head and take your eyes off the target … he gets his head on the wrong side in an awkward position and it’s lights out.”

Cameron Smith agreed there was a clear issue with Foley’s tackle attempt.

“It’s all about technique – if you’re tackling low, you can’t afford to put your head down and eyes towards the turf,” he said.

“Your eyes need to stay on the target at all times.”

The rookie got to his feet and was taken from the field. Nine’s Bronte Gildea confirmed that Foley was ruled out with category one concussion symptoms.

Roosters legend Brad Fittler said the youngster “learned a really good lesson” about the strength and power possessed by NRL-level players.

Moments after the debutant left the field, his Roosters teammate Hugo Savala suffered a similar fate – once again involving Isaako.

Savala copped a stray shoulder from Isaako in contact and collapsed to the turf.

“This will be category one, he looks like he’s out … I think that’s his night over,” Johns said on commentary.

Surprisingly, the five-eighth ruled a category two when he left the field, but ultimately failed his HIA in the sheds, ending his night.

Hugo Savala leaves the field. Nine

Isaiya Katoa opened the scoring for the hosts at Suncorp Stadium, splitting through some tired defenders, days after leaving NSW Blues camp.

Superstar centre Herbie Farnworth extended the lead in wet conditions, crossing in the corner to make it a 12-0 buffer at the break.

The one-way traffic continued in the second half as the Dolphins ran rampant, while the Roosters unveiled another debutant when highly-touted young halfback Toby Rodwell came off the bench for the final 25 minutes and scored a try.

Rex Bassingthwaighte also crossed for the Roosters in his first game of NRL.