The risk of losing Cameron Smith for two matches was one Melbourne Storm were not prepared to take as the club pleaded guilty to the skipper's dangerous contact charge on Tuesday.

Smith and prop Sam Kasiano, who pleaded guilty to dangerous contact with the headneck of Jarrod Wallace, will both miss Saturday night's home game against Manly at AAMI Park.

Smith was on track to miss a second match if he failed to have the charge downgraded after Titans forward Kevin Proctor strained his groin muscle in a 47th-minute tackle by Smith, Curtis Scott and Cameron Munster. Smith held onto one of Proctor's legs.

The Storm brought in leading lawyer Nick Ghabar for advice before entering a plea.

"It was purely the risk," Storm football manager Frank Ponissi told NRL.com.

"He and the club felt we had a very strong case. But this time of year with the competition so tight, to lose Cameron for another game heading into Origin, was the overriding reason we didn't go to the judiciary."

Storm are in fourth spot on the NRL ladder but is one of five clubs on 12 points.

"Curtis [Scott] was a contributing factor in the tackle. Proctor's leg was already up in the air and when Cameron made contact the leg wasn't lifted any higher," Ponissi said.

"We still think the entire tackle was an accident and that we had a good defence to prove that."

Smith: I had no intention to hurt him at all

The Titans received some good news with Proctor's scans showing a mild strain. He is expected to miss one or two weeks.

Smith and Kasiano were among four Melbourne players charged - all with dangerous contact offences. But Munster and Josh Addo-Carr's misdemeanours were graded lower, allowing them to play the Sea Eagles.

So coach Craig Bellamy needs to find two new forwards and received a boost with news Tim Glasby [hand] could play.

"It's not beyond the realms of possibility that Tim will be back. He'll be named in the 21 but we'll have to see how he is later in the week," Ponissi said.

"At the moment he's a strong possibility. He's got to get through some contact this week with his thumb, so if he can get through a couple of sessions with all the catching drills and tackling, he's a chance."

Replacing Smith will be 22-year-old Brandon Smith, who has come off the bench for seven games so far in the 2018 Telstra Premiership season.

The youngster made his NRL debut replacing the Queensland captain in Storm's line-up during last year's Origin series. But he's not a regular 80-minute player and shared the hooking duties with Slade Griffin [now at Newcastle] last season in Smith's absence.

"Brandon will definitely start but whether he can play 80 minutes we're not sure," Ponissi said. "We will have a No.14 to help.

"Craig [Bellamy] has a few theories on who that will be to share the dummy-half role. But Brandon will play a large portion of it."

Elsewhere, Storm wrote to the NRL on Monday explaining why five-eighth Ryley Jacks was illegally using his phone in the Suncorp Stadium sheds.

Jacks had come from the field for a full concussion test but noticed a text from his mother concerned for his welfare. He instinctively replied, forgetting players are not allowed to use their mobiles during matches or an hour either side.

The explanation still may not save Storm from being fined.

Match highlights: Storm v Titans – Round 10, 2018

Player Bunty Afoa Club Warriors Minute of Match 13th Charge/Incident Dangerous Contact - Other Charge Grade 1 Result Guilty - early plea Matches to serve 0 Points/fine calculation 75 Carryover points 75 Misconduct on whom? Siosiua Taukeiaho

Player Jazz Tevaga Club Warriors Minute of Match 40th Charge/Incident Dangerous Contact - Other Charge Grade 1 Result Guilty - early plea Matches to serve 0 Points/fine calculation 75 Carryover points 75 Misconduct on whom? Jared Waerea-Hargreaves

Player Dylan Napa Club Roosters Minute of Match 74th Charge/Incident High Tackle - Careless Charge Grade 1 Result Guilty - early plea Matches to serve 0 Points/fine calculation $1100 Carryover points N/A Misconduct on whom? Isaiah Papali'i

Player Dylan Napa Club Roosters Minute of Match 80th Charge/Incident Dangerous Contact - Other Charge Grade 1 Result Guilty - early plea Matches to serve 0 Points/fine calculation 75 Carryover points 75 Misconduct on whom? Bunty Afoa

Player Cameron Munster Club Storm Minute of Match 40th Charge/Incident Dangerous Contact - Head/Neck Charge Grade 1 Result Guilty - early plea Matches to serve 0 Points/fine calculation 75 Carryover points 75 Misconduct on whom? Brenko Lee

Player Josh Addo-Carr Club Storm Minute of Match 40th Charge/Incident Dangerous Contact - Head/Neck Charge Grade 1 Result Guilty - early plea Matches to serve 0 Points/fine calculation 75 Carryover points 75 Misconduct on whom? Brenko Lee

Player Cameron Smith Club Storm Minute of Match 47th Charge/Incident Dangerous Contact - Other Charge Grade 2 Result Guilty - early plea Matches to serve 1 Points/fine calculation 150 Carryover points 50 Misconduct on whom? Kevin Proctor