Question: Where does the current PFL Welterweight Champion train?

full_context: Document 1: Jake Shields: Jake Sequoyah Shields (born January 9, 1979) is an American mixed martial artist, currently fighting in the welterweight division for the World Series of Fighting. He was the last Rumble on the Rock Welterweight Champion, the only Elite XC Welterweight Champion, a former Shooto Welterweight Champion and former Strikeforce Middleweight Champion. He also fought for the Ultimate Fighting Championship (UFC).
Document 2: Michael Chandler: Michael Chandler Jr. (born April 24, 1986) is an American mixed martial artist fighting in the lightweight division. He is currently under contract with Bellator MMA where he is a former two-time Bellator Lightweight Champion. He was also the winner of the . Chandler is currently ranked as the #7 Lightweight in the world accrording to FightMatrix.com and is regarded as one of the top 20 greatest Lightweight fighters of all time. He was the 2011 Breakthrough Fighter of the Year. He holds notable victories over UFC Lightweight Champions Benson Henderson and Eddie Alvarez.
Document 3: Luke Rockhold: Luke Skyler Rockhold (born October 17, 1984) is an American mixed martial artist competing in the UFC, where he is the former UFC Middleweight Champion. He won the title on December 12, 2015 by defeating prior champion, the undefeated Chris Weidman via 4th round TKO. He lost his belt in his first title defense against Michael Bisping, who stepped in after Weidman pulled out of their scheduled rematch. A two-time world champion, Rockhold also won the Strikeforce Middleweight Championship by defeating Ronaldo Souza on September 10, 2011 via unanimous decision. Rockhold defended the title twice and was the last man to hold the belt, before Strikeforce was officially taken over by the UFC. He is currently ranked the #2 middleweight and #12 official pound-for-pound fighter by the UFC and other publications like Fight Matrix and Sherdog. Luke is also an avid surfer and skateboarder.
Document 4: Jon Fitch: Jonathan Parker Fitch (born February 24, 1978) is an American mixed martial artist, competing in the welterweight division of Professional Fighters League where he is the current PFL Welterweight Champion. He formerly competed for the Ultimate Fighting Championship where he compiled a record of 14–3–1.
Document 5: Michael Bisping: Michael Bisping ( , ; born 28 February 1979) is an English mixed martial artist and actor. He fights in the Ultimate Fighting Championship (UFC), and is the current UFC Middleweight Champion. He is a former Cage Rage Light Heavyweight Champion, and "The Ultimate Fighter 3" Light Heavyweight Tournament winner. At UFC 78, he became the first English fighter in a UFC main event and at UFC 199, he became the first English fighter to win a UFC championship.
Document 6: Colby Covington: Colby Covington (born February 22, 1988) is an American mixed martial artist who competes in the welterweight division of the Ultimate Fighting Championship. He is currently ranked #8 in the official UFC welterweight rankings.
Document 7: Chris Leben: Christian Cyrus Leben (born July 21, 1980) is a retired American mixed martial artist. He formerly competed with the UFC as a Middleweight, compiling a record of 12-10 in 22 appearances for the organization. Leben first appeared in the inaugural season of "The Ultimate Fighter" reality series, and has also fought in the now-defunct WEC. He began his UFC career with five victories in a row before suffering a knockout loss to future UFC Middleweight Champion Anderson Silva. Leben was the inaugural WEC Middleweight Champion.
Document 8: Michael Johnson (fighter): Michael Julian Johnson (born June 4, 1986) is an American mixed martial artist who competes in the lightweight division of the Ultimate Fighting Championship. A professional MMA competitor since 2008, Johnson mostly competed in his regional circuit, before signing onto the Ultimate Fighting Championship to appear on "". As of July 2017, he is #9 in the official UFC lightweight rankings.
Document 9: Luke Zachrich: Luke Zachrich (born October 1, 1981) is an American mixed martial artist and former professional boxer who formerly competed in the Middleweight division of the Ultimate Fighting Championship A professional mixed martial arts competitor since 2006, Zachrich was a member of Team Forrest on the seventh season of The Ultimate Fighter, and has also fought for King of the Cage, Xtreme Fighting Organization, Bellator, and Ultimate Victory Challenge, the latter of which he was the inaugural Middleweight Champion.
Document 10: Jens Pulver: Jens Johnnie Pulver (born December 6, 1974) is an American professional mixed martial artist and undefeated boxer and kickboxer. Pulver was the inaugural UFC Lightweight Champion in addition to serving as the head coach on "The Ultimate Fighter 5" reality show against long-time rival B.J. Penn. In mixed martial arts, Pulver competed at the Lightweight, Featherweight, Bantamweight and Flyweight divisions in addition to competing at the Middleweight, Light Middleweight, and Welterweight divisions as a professional boxer. While perhaps best known for competing in the UFC, Pulver has also competed in Pride Fighting Championships, for the PRIDE 2005 Lightweight Grand Prix. He is to-date the youngest UFC Lightweight Champion in the UFC history, eventually relinquishing his title, after two defenses, due to a contract dispute. Pulver officially retired from combat sports in 2014. Pulver is considered the founder of the UFC lightweight division.
Document 11: B.J. Penn: Jay Dee "B.J." Penn (born December 13, 1978) is an American professional mixed martial artist and Brazilian Jiu-Jitsu practitioner. Penn debuted and competed in the Ultimate Fighting Championship (UFC), and later in K-1. Prior to fighting for the UFC, he became the first American Gold medalist of the World Jiu-Jitsu Championship. In mixed martial arts, Penn has competed in the Featherweight, Lightweight, Welterweight, and Middleweight divisions. As a former UFC Lightweight Champion and UFC Welterweight Champion, he is one of only three fighters in UFC history to win titles in multiple weight classes. Penn was also a Co-champion in the UFC 41 Lightweight Tournament, due to an eventual draw opposite Caol Uno in the tournament finale. Through his tenures as champion, Penn unofficially unified the UFC Lightweight Championship (against Sean Sherk) and broke the all-time lightweight title defense record. Penn was inducted into the UFC Hall of Fame, as the inaugural inductee in the Modern-Era Wing by career-long rival Matt Hughes, during "International Fight Week" in July 2015.
Document 12: Michael Chiesa: Michael Keith Chiesa ( ; born December 7, 1987) is an American mixed martial artist. A professional MMA competitor since 2008, Chiesa was the winner of FX's inaugural . He currently fights for the UFC in the lightweight division where he is the #9 contender in official UFC rankings.
Document 13: Pat Miletich: Patrick Jay "Pat" Miletich ( ; born March 9, 1966) is a retired American mixed martial artist and a current sports commentator. He is known for his fights in the Ultimate Fighting Championship, where he became the first UFC Welterweight Champion and UFC 16 Welterweight Tournament Winner. Miletich is also known as a highly successful trainer and coach, having founded Miletich Fighting Systems. This camp is considered one of the most successful in MMA history and has produced several world champions. On July 6, 2014, he was inducted into the UFC Hall of Fame.
Document 14: Anthony Pettis: Anthony Paul Pettis (born January 27, 1987) is an American mixed martial artist currently competing as a Lightweight in the Ultimate Fighting Championship (UFC), where he is the former UFC Lightweight Champion. Pettis was also the final WEC Lightweight Champion prior to the promotion being merged into the UFC. At one point, he was ranked as a top-ten pound for pound fighter. He is currently ranked #13 in the official UFC lightweight rankings.
Document 15: Mike Swick: Mike Swick (born June 19, 1979) is a retired American mixed martial artist who spent most of his career competing for the Ultimate Fighting Championship's middleweight division. Swick, who trains at American Kickboxing Academy alongside fellow welterweight standout Jon Fitch, entered the UFC after appearing on the inaugural season of The Ultimate Fighter.
ground_truth: American Kickboxing Academy