Four fighters on Saturday's Shane Mosley-Sergio Mora undercard are scheduled to take part in an open workout beginning at noon today at historic Olvera Street in downtown Los Angeles.

Carlos Baldimir and Saul Alvarez, who face one another, will appear first followed by Victor Ortiz and Vivian Harris, who also fight each other on the card.

The pay-per-view card will take place at Staples Center.