JAKE Mamo and Castleford's Jacques O'Neill have both avoided charges for their yellow cards during Saturday's Challenge Cup semi-final.

Mamo was sin-binned during the first half for holding down in an attempt to stop a potential Tigers try during the 35-20 defeat for his Warrington Wolves side.

O'Neill met a similar fate after half-time for a dangerous tackle on Wire centre Toby King.

However, the RFL's Match Review Panel have confirmed the yellow cards shown by match referee Chris Kendall were sufficient punishment and neither will face a ban.

The only player to be issued with a suspension from Saturday's semi-finals is Hull FC's Josh Griffin, who sustained a ruptured Achilles in an incident which led to Theo Fages' controversial try for St Helens.

The centre has been given a two-match penalty notice for Grade C dangerous contact.

Wakefield Trinity – The Wire's opponents for their next Super League fixture on Friday night – did not pick up any new suspensions from their 30-20 win over Leigh Centurions yesterday but will still be without second rower Matty Ashurst, who will serve the last game of a two-match ban.