Battling to keep pace with the top eight, the Roosters are likely to be without half Hugo Savala again for Thursday night's bumper clash against Melbourne.
Already dealing with wrist ligament damage that kept him out of the Cronulla loss, Savala was spotted walking out of Shark Park on Friday night with his left foot in a moon boot.
His foot issue is not believed to be serious, but it gives the 23-year-old another hurdle to clear to return on Thursday night at Allianz Stadium.
The Roosters completed poorly in Friday night's 31-18 loss to Cronulla, making 17 errors for the match and finishing just 44 per cent of sets in the second half.
Robinson also conceded after the game they had been "beaten physically", lacking a presence against the Sharks in a virtual four-point game for both sides.
"We did, we missed it (physically)," Collins said.
"So we need to do something about it. It's a big job, especially for the front row in that position.
"We've just got to set the tone for the game and how it will be played out with that physicality.
"It's about going into the game, not expecting things to happen. You have to create it. The only way to create that physicality is by being physical."
The Storm will likely be without Nelson Asofa-Solomona for the match due to his errant elbow against Manly on Saturday, but Collins predicted that would matter little.
"They have the same mindset as we do with that next-man up mentality and whoever you put in that position is going to do a good job," Collins said.
"Melbourne have got a good squad there, always have."
If Savala does miss, it will likely mean Chad Townsend and Sam Walker will remain in the halves, after the former was picked ahead of Sandon Smith last week.
In 10th spot after the round, the Roosters have three crucial games against Melbourne, Manly and the Dolphins over the next three weeks.
But regardless of the halves changes in recent weeks, hooker Connor Watson said Townsend and Walker should not shoulder the blame for the poor attack against the Sharks.
"It's more about what us forwards do and give (the halves) a good platform to play off," Watson said.
"Our football was played out of our own end. It just felt like we were coming out of our own half the whole time.
"As halves, you don't get much opportunity when you're doing that.
"As a forward pack, back five, whoever is carrying the ball, we need to have better shape and do a better job for those guys - put them in more positions where they can actually play and utilise their skill and decision making."
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