He was placed on report for the late challenge on Sam Tomkins in the Rhinos’ 26-12 loss to Wigan.
Ablett was also given a £300 fine by the RFL disciplinary committee.
He will miss the next two league fixtures against Castleford and Les Catalans, but would be available for the Challenge Cup final on August 28th should Leeds win on Saturday.
Ablett could decide to launch an appeal against the decision, especially as the suspension given was the maximum for a Grace C offence.
With Ablett suspended and three other players injured, McClennan may need to move centre Keith Senior into the second row to fill that gap in the starting thirteen.