Question: What American professional mixed martial artist who is currently fighting in the Middleweight division of the Ultimate Fighting Championship was trained by Matt Hume?

Context paragraphs:
Matt Hume: Matt Hume (born July 14, 1966) is an American mixed martial artist.  He is the founder and head trainer at AMC Pankration in Kirkland, WA, which is home to UFC flyweight champion Demetrious Johnson, ONE bantamweight champion Bibiano Fernandes and he has trained numerous world class fighters including Josh Barnett, Tim Boetsch Bob Sapp, Chris Leben, Hayato Sakurai, Akira Shoji, Matt Brown, Rich Franklin, Mario Miranda and Caros Fodor.

Tim Boetsch: Timothy A. Boetsch ( ; born January 28, 1981) is an American professional mixed martial artist currently fighting in the Middleweight division of the Ultimate Fighting Championship.  In addition to the UFC, Boetsch has formerly competed as an alternate for the New York Pitbulls in the International Fight League and King of the Cage.  He holds victories over former UFC Champion Johny Hendricks and former bellator middleweight champion Hector Lombard.  As of July 21, 2017, he is ranked #13 in official UFC Middleweight rankings.

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.

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.

Rory Markham: Rory Markham (born March 25, 1982) is an American professional mixed martial artist, stuntman and actor who most recently competed in the Welterweight division of the Ultimate Fighting Championship.  A professional competitor since 2003, currently fighting in XFO MMA.  Markham has also formerly competed for the IFL, representing the Quad Cities Silverbacks.

Dan Henderson: Daniel Jeffery Henderson (born August 24, 1970) is an American former mixed martial artist and Olympic wrestler, who last competed as a middleweight in the Ultimate Fighting Championship.  He was the last Strikeforce Light Heavyweight Champion and was the last Welterweight (80 kg ) and Middleweight (95 kg ) champion of Pride Fighting Championships.  Additionally, Henderson was the Brazil Open '97 Tournament Champion, the UFC 17 Middleweight Tournament Champion, the Rings: King of Kings 1999 Tournament Champion and the Pride Weltwerweight Grand Prix Tournament Champion.  During his career, Henderson also challenged for the UFC Middleweight Championship (2x), the UFC Light Heavyweight Championship and the Strikeforce Middleweight Championship.  He was the first mixed martial artist to concurrently hold two titles in two different weight classes in a major MMA promotion.  At the time of his retirement after UFC 204, he was the oldest fighter on the UFC roster.  Known to be one of the greatest mixed martial artists of all time having defeated a total of seventeen MMA world champions across four major MMA promotions (UFC, PRIDE FC, Strikeforce, and RINGS).

Jordan Radev: Jordan Radev (Bulgarian: Йордан Радев ; born March 4, 1976) is a Bulgarian wrestler and professional mixed martial artist.  He was the first Bulgarian mixed martial artist to fight in the Ultimate Fighting Championship in its middleweight division.

Alan Jouban: Alan Michael Jouban (born November 25, 1981) is an American professional mixed martial artist currently fighting in the Welterweight division of the Ultimate Fighting Championship.  A professional competitor since 2010, Jouban has also formerly competed for Shark Fights, the RFA, Tachi Palace Fights, and Tuff-N-Uff.

Tamdan McCrory: Tamdan Wade McCrory (born November 5, 1986) is an American professional mixed martial artist who formerly competed in the Middleweight division of the Ultimate Fighting Championship.  A professional competitor since 2006, McCrory has also formerly competed for Bellator MMA and the Cage Fury Fighting Championships.

Jake Collier: Jake Collier (born October 23, 1988) is an American mixed martial artist currently fighting in the middleweight division of the Ultimate Fighting Championship (UFC).

Supporting paragraphs: Matt Hume Tim Boetsch
Answer: Tim Boetsch