Hala'Ufia, 34, was dismissed for the challenge just 10 minutes into his side's 15-9 Aviva Premiership defeat to London Welsh on December 1.
The Tongan forward is banned until January 7 and will miss the Exiles' home-and-away Amlin Challenge Cup fixtures against Gloucester, plus three Premiership matches. Hala'Ufia was also ordered to pay £500 towards hearing costs.
- Sports & Recreation
- London Welsh