St Helens winger Tommy Makinson has been banned for five games after pleading guilty to a low grab on Castleford Tigers prop Liam Watts.
The 28-year-old has also been fined £500, but his "other contrary behaviour" charge was downgraded by a disciplinary panel from Grade F, the most serious, to Grade E.
The England player will be unavailable for selection until early October.
Saints won the Super League encounter with Tigers 10-0 on Sunday.
Makinson's previous good disciplinary record was taken into account at the tribunal.
He will miss Saints' Super League fixtures both home and away against Hull KR as well as trips to Huddersfield and Wigan plus their Challenge Cup quarter-final tie against Warrington.
He could return for the Challenge Cup semi-final should Saints beat Warrington.
Castleford's Grant Millington also had a one-match ban overturned for two Grade A dangerous contact charges from the meeting with Saints on Sunday.
Prop Millington was cautioned for one charge on Theo Fages in the 40th minute and accepted a similar charge on Jonny Lomax in the 48th minute, which was not recommended for any further sanction.