He was originally signed as an undrafted free agent by the Montreal Expos in 1999 and played in the Expos/Nationals farm system through 2006, with his highest level being a couple of stints with the AA Harrisburg Senators in 2004 and 2006.

[1] He began 2010 back in the Atlantic League, first with the Lancaster Barnstormers and then the York Revolution before returning to the Mets system to play for Binghamton.

[2] Manriquez retired after the 2013 season and joined the Texas Rangers organization as a coach in 2014.

[2] After retiring as a player, Manríquez befriended a U.S. Army recruiter while their sons were on the same swimming team.

In 2020, at the age of 37, Manríquez enlisted in the U.S. Army with a military occupation specialty of 15U Helicopter Repairer.