Question: When was the Irish professional mixed martial artist who is  Gunnar's  teammate born 

Context paragraphs:
Neil Seery: Neil Seery (born 30 August 1979) is a retired Irish professional mixed martial artist, who most recently competed in the flyweight division of the UFC.  Beginning his career in 2005, Seery also competed for BAMMA, Cage Warriors, and RINGS.  He was the Cage Warriors Flyweight Champion.

Gunnar Nelson (fighter): Gunnar Lúðvík Nelson (born 28 July 1988) is an Icelandic mixed martial artist currently competing in the Welterweight division of the Ultimate Fighting Championship.  He is a black belt in Brazilian Jiu-Jitsu, which was awarded by Renzo Gracie after impressive results at the 2009 IBJJF Pan-Ams and the 2009 ADCC Submission Wrestling World Championship.  He is currently ranked #11 in the official UFC Welterweight rankings.  Gunnar is a teammate of fellow UFC fighter and Lightweight Champion Conor McGregor, and is a member of Mjölnir gym in Iceland, and SBG Ireland.

Pat Healy (fighter): Patrick "Pat" Healy (born July 20, 1983) is an American professional mixed martial artist currently competing in the Lightweight division of Titan FC.  A professional competitor since 2001, Healy has also formerly competed for the UFC, Strikeforce, the WEC, the IFL, the MFC, King of the Cage, ACB and Shark Fights.  His twin brother, Ryan, is also a professional mixed martial artist.

John Kavanagh (martial artist): John Raymond Kavanagh (born January 18, 1977) is an Irish martial arts coach, brazilian jiu-jitsu practitioner and former professional mixed martial artist.  His students include fighters such as Conor McGregor and Gunnar Nelson.

Lee Hasdell: Lee Hasdell (born 13 December 1966) is a British martial artist, promoter and former professional kickboxer and mixed martial artist.  Hasdell is considered by many as a true pioneer of UK mixed martial arts, as he was the main driving force and innovator in the 1990s.  Hasdell promoted the first professional Mixed martial arts events in the United Kingdom and has helped develop many of the standards within the British MMA scene of today.

Mariusz Linke: Mariusz Ryszard Linke (born July 31, 1969) is a Polish professional mixed martial artist and grappler who is most notable for being the first Polish born black belt in Brazilian jiu-jitsu, the highest ranking active Polish judoka and BJJ practitioner in both mixed martial arts and grappling, and one of the most decorated grapplers in Poland, he is also the first Polish grappler to travel to Brazil and receive training under a Gracie trained Brazilian jiu-jitsu black belt.  Linke has notably competed in the European Championship, NAGA, Grapplers Quest, ADCC and the Pan American Games.  Linke is currently in talks with top Polish promotion Konfrontacja Sztuk Walki to negotiate a 2 fight contract to close out his mixed martial arts career by the end of 2015, Linke has stated despite retiring from fighting he will still continue his grappling career and is rumored to be in the 2014 ADCC Polish Trials to enter the 2015 ADCC World Championship.

Yasuhito Namekawa: Yasuhito Namekawa (滑川康仁 , Namekawa Yasuhito ) (born October 27, 1974) is a Japanese mixed martial artist who competes in the light heavyweight division.  Namekawa made his Mixed martial arts debut for Fighting Network Rings in 1998.  He fought in mainly Shoot fighting bouts until 1999 when Rings introduced the "King of King Rules".  Throughout his career, Namekawa has fought for organisations such as Rings, Deep and Pride FC.  His last fight to date was in 2008, with a professional Mixed martial arts career spanning ten years.

Saul Almeida: Saul Almeida (born June 4, 1989) is a Brazilian-American professional mixed martial artist currently competing in the featherweight division for the World Series of Fighting.  A professional mixed martial artist since 2008, Almeida has also formerly competed for Bellator.

Conor McGregor: Conor Anthony McGregor (Irish: "Conchúr Antóin Mac Gréagóir" ; born 14 July 1988) is an Irish professional mixed martial artist and professional boxer who is currently signed to the Ultimate Fighting Championship (UFC).  He is the reigning UFC Lightweight Champion, and former UFC Featherweight Champion.  During his mixed martial arts (MMA) career, McGregor has competed as a featherweight, lightweight, and welterweight.  As of 2017, McGregor is ranked 2nd on UFC's pound for pound rankings.

Akihiko Adachi: Akihiko Adachi (安達 明彦 , Adachi Akihiko ) is a Japanese light heavyweight mixed martial artist.  Adachi was born in Sapporo, Hokkaido, Japan.  He fought as a professional mixed martial artist from Paraesta Matsudo in Matsudo, Chiba Prefecture beginning in 2000.  Adachi was the top amateur Shooto light heavyweight in 2002, and was named the Shooto cruiserweight rookie of the year in 2003.  Adachi's last bout was in 2006 and he formally retired from mixed martial arts in 2008.

Supporting paragraphs: Gunnar Nelson (fighter) Conor McGregor
Answer: 14 July 1988