Erik Morales vs. Zahir Raheem, billed as Double Trouble, was a professional boxing match contested on September 10, 2005.

Pacquiao was to face Héctor Velázquez at super featherweight while Erik Morales would make his debut at lightweight against Zahir Raheem.

Raheem rocked Morales in the 5th round and built a lead on the scorecards, but Morales rallied in the 11th round and staggered him with a right hand as Raheem's glove touched the canvas, but it was not scored a knockdown by referee Jon Schorle.

[9] The final scores were 118–110, 116–112 and 115–112 in favor of Raheem giving him a unanimous decision victory.

When asked if fighting at lightweight was perhaps too heavy for him, Morales replied: "I did feel a little out of whack but I have to look at the tape before I decide to go back down [to 130 pounds]."