is an Ecuadorian professional wrestler. He is perhaps best known for his appearances in the United States throughout the 1990s, including stints with Extreme Championship Wrestling under his birth name and under the ring names El Puerto Riqueño and Ubas and with the World Wrestling Federation as Babu Pablo Márquez was briefly part of the WWF's fledgeling Light Heavyweight division, wrestling two matches against Taka Michinoku in late 1997 and early 1998. He re-debuted on the August 16, 1998 episode of Sunday Night Heat under the name of "Abu" (later "Babu"). His gimmick was that of a manservant to Tiger Ali Singh. He was often seen doing degrading things for Singh. Although most of his stint in WWF was in a non-wrestling role, he did have a few televised matches: on the November 3, 1998 edition of Monday Night Raw, he was ordered by Tiger Ali Singh to wrestle Al Snow, though Singh reentered and won the match; on the December 6, 1998 edition of WWE Sunday Night Heat, he teamed with Singh to wrestle Kurrgan and Luna Vachon, with the match ending in a no-contest. He also wrestled on a 1998 edition of Shotgun when he was ordered by Singh to compete against Goldust in a losing effort.

After he was released from the WWF, Márquez worked for a number of wrestling promotions. On February 2, 1997 Marquez defeated Bodacious Pretty Boy in Baltimore, MD. for Mid-Eastern Wrestling Federation. He went back to ECW, appearing twice on their TV shows. On the January 2, 1999 edition of ECW's Hardcore TV, Marquez lost to Yoshihiro Tajiri. He also appeared on ECW on TNN on December 17, 1999 wrestling Super Calo and Hidaka in a three way match. That match ended in a no-contest.

He also worked for Jersey All Pro Wrestling under his real name. He competed there from 1999 to 2000 and was part of a group known as The "New Freebirds" with Don Montoya and Reckless Youth.[

In 2003 and 2004, he wrestled for World Wrestling Council in Puerto Rico and won their World Junior Heavyweight Championship three times. From 2005 to 2006, Marquez wrestled in the Puerto Rican wrestling promotion International Wrestling Association.

Marquez currently wrestles, and teaches for the Main Event Training Center in Fort Lauderdale, Florida. His first major storyline in CCW began when he got involved in a kayfabe fight confrontation between Cash Money Alex G, the head trainer of CCW's Bodyslam University, training facility, and several female graduates of the training program. When Alex G attacked the women, Marquez defended them, offering to train them himself. He also challenged Alex G to a match on September 29, 2007, in which he defeated Alex G.

Marquez was the referee for The Ultimate Warrior vs. Orlando Jordan match in NWE Spain in 2008.