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Matt Riddle vs. Newcomer Sean Pearson at UFC 124 with TJ Waldburger Out

The UFC has tapped newcomer Sean Pierson to replace an injured Anthony “TJ” Waldburger in a preliminary matchup with welterweight Matt Riddle at UFC 124 on Dec. 11 in Montreal, Canada, according to MMAjunkie.

The UFC 124 fight card is headlined by welterweight champ Georges St-Pierre vs. Josh Koscheck.

For the latest UFC 124 news and UFC 124 rumors stay tuned to

Pictured: Matt Riddle

Updated to include Riddle’s new opponent, originally posted 10/26/2010 at 1pm ET

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