Widnes forward Willie Isa has been suspended for three matches for two dangerous tackles during his side's 28-6 Challenge Cup semi-final defeat by Castleford on Sunday.
Isa was given a two-match ban after admitting a grade B charge of making dangerous contact on Castleford winger Kirk Dixon.
He was also found guilty of a dangerous tackle on Tigers prop Andy Lynch for which he was suspended for one game.
Isa, who appeared in front of a disciplinary panel at Rugby Football League headquarters in Leeds, was also given a £300 fine and will start his ban when the Vikings visit Huddersfield in Super League on Sunday.
Meanwhile, Batley utility back Lee Paterson has been given a five-match ban after being found guilty of homophobic abuse of an opponent.
The 32-year-old denied any wrongdoing when he appeared in front an independent disciplinary tribunal in Leeds charged with a Grade E offence, which carries a sentence of between four and eight matches.
The punishment mirrors that handed out to Leeds' England international Zak Hardaker in June after he was found guilty of making a homophobic comment during a Super League match at Warrington.
Paterson was sent off for the offence during the Bulldogs' 36-6 home defeat by Championship leaders Leigh on August 3.
The ban effectively ends the season for Paterson, who is in his first season with Batley after seven years with Halifax, although he maintained his innocence after the hearing.
Paterson tweeted: "Like I said before people that no (sic) me and who's opinion I care about no the truth. Not 3 people sat behind a desk who don't no me."