Mr. Pogo

On May 25, 2017, Sekigawa underwent spinal canal surgery for the second time in three years due to the pain, but the surgery was halted mid-way due to massive blood loss and the doctors deemed it too dangerous to continue. He remained in a Gunma hospital, until they tried surgery again on June 22, nearly a month after the initial surgery attempt. However, during the surgery, his blood pressure dropped to the point he began having irregular heart beats, which resulted in a cerebral infarction. He was transferred to a hospital in Saitama, where he died on June 23. He was 66 years old.

In 2014, Sekigawa underwent a spinal canal surgery.

Sekigawa was rushed to a hospital in February 2007 with a bleeding gastric ulcer and spent three weeks there.

In 2003, he ran for a Senate seat in his hometown, but was defeated in the polls.

From 1999–2016, Pogo was freelancer, wrestling for promotions including IWA Japan, SPWF, Onita FMW, Shin-W*ING, Shin-FMW, Onita Pro, and his own promotion, WWS.

His retirement did not last, as he returned to wrestling in July 1997 for Big Japan Pro Wrestling. In 1998, he became the inaugural BJW Deathmatch Heavyweight Champion. After losing the title, he left BJW and briefly returned to FMW to feud with Atsushi Onita one more time, before leaving in November 1998.

Pogo returned to FMW in July 1993 and resumed his feud with Atsushi Onita. During this period, he wrestled periodically for Michinoku Pro Wrestling, New Tokyo Pro Wrestling, and Big Japan Pro Wrestling. He won two FMW Brass Knuckles Heavyweight Championships and three FMW Brass Knuckles Tag Team Championships, one each with Hisakatsu Oya, The Gladiator, and Yukihiro Kanemura. An injury nearly ended Pogo's career at Summer Spectacular, on August 1, 1996 during a Double Hell Death Match against Terry Funk when the match was cut short, after Funk blew fire at Pogo, who dropped into the exploding barbed wire outside of the ring. When falling into it, the barbed wire pushed his chin and head back, breaking his neck. Funk, not knowing why Pogo was still down, began blowing fire at him, stuck in the barbed wire, causing the referee to end the match and award it to Funk via knockout. Pogo returned to the ring, but the injury made him even more immobile. His last match as an active FMW wrestler took place at Year End Spectacular on December 11, 1996, teaming with Masato Tanaka, Tetsuhiro Kuroda, and the returning Atsushi Onita to defeat Terry Funk, Hisakatsu Oya, and The Headhunters in what was considered Pogo's retirement match.

In the summer of 1991, Pogo left FMW, because he wanted more interesting matches to compete in, and moved to Wrestling International New Generations (W*ING), where he partook in innovated deathmatches with everyone, ranging from veterans like Kim Duk and Kevin Sullivan to up and coming stars like Mitsuhiro Matsunaga and Yukihiro Kanemura, among others. He won one World Tag Team Championship with Crash The Terminator. A bitter contract dispute forced him to leave W*ING in June 1993.

In June 1990, he was back in Japan, this time for Frontier Martial-Arts Wrestling, which was an upstart promotion that specialized in death matches. He debuted in FMW on June 2, 1990, seconding Tarzan Goto in his match with Ricky Fuji. Immediately, Pogo feuded with Atsushi Onita, partaking in various deathmatches, which eventually became Pogo's specialty.

During the tail end of the Ninja Express' NJPW run, Mr. Pogo began wrestling for World Wrestling Council in Puerto Rico in 1987, wrestling the likes of Ricky Santana and TNT. By the time the Ninja Express left NJPW in June 1988, he and Nagasaki were wrestling for WWC full-time. In July 1988, the Bruiser Brody murder scandal greatly damaged the wrestling scene in Puerto Rico, causing Pogo to work at a local plastic molding plant, while wrestling, due to the massive decrease in attendance and sales. At the same time, he held five WWC World Tag Team Championships, once with TNT and four times with Nagasaki. After Nagasaki left to return to NJPW, before heading to WCW, Pogo carried on the Ninja Express legacy, teaming with Kensuke Sasaki, winning two WWC Caribbean Tag Team Championships in 1989. He also held the WWC World Junior Heavyweight Championship once, despite being over the weight limit, before leaving WWC in 1991.

In 1985, Mr. Pogo returned to Japan and to NJPW with a new tag team partner in Kendo Nagasaki. Together, they were known as The Ninja Express. They took part in a league to determine the inaugural IWGP Tag Team Champions; they placed seventh with seven points. In 1987, they took part in a Japan Cup Tag League, where they placed seventh with nine points. The Ninja Express left NJPW in June 1988.

In 1980, he returned to the United States and back under the name Mr. Pogo. His first stop on his second American excursion is for the NWA's Tri-State territory, where he spent a year wrestling the likes of Wahoo McDaniel, Butch Reed (He was over in Florida), and The Spoiler. In 1981, he moved east to the Mid-Atlantic territory, where he spent nearly three years there as Ninja, wrestling the likes of Johnny Weaver, Jimmy Valiant, Blackjack Mulligan, Ivan Koloff, Jay Youngblood, Barry Windham, Don Kernodle, Buddy Landell, Leroy Brown, Mike Davis, Lord Alfred Hayes, Iceman "King" Parsons, and Porkchop Cash. In 1984, he moved back to the Central States territory in Kansas City, where he spent a year over there, winning its Heavyweight Championship and the Tag Team Championship with Gypsy Joe. In his return to Kansas City, he wrestled the likes of Dick the Bruiser, Rufus R. Jones, D.J. Peterson, Mark Youngblood, and Marty Jannetty.

In 1979, he returned to Stampede in Calgary, this time under the name Mr. Sekigawa, and he won the Stampede North American Heavyweight Championship on December 8, 1979, defeating Don Gagne for the title. Nearly two weeks later, he won the vacant Stampede Wrestling International Tag Team Championship with the Dynamite Kid, making him a double champion. A month later, he lost both titles: the North American Heavyweight Championship to Leo Burke, and the International Tag Team Championship to Keith and Bret Hart.

In 1975, he moved down to the United States. His first American stop was in the NWA's Central States territory under the name The Great Seki, where he spent nearly three years in Kansas City, wrestling the likes of Bob Geigel, Jake Roberts, Akio Sato, Harley Race, and Bulldog Bob Brown. In 1978, he moved east to the Tennessee area under the name The Ninja Warrior, where he was managed by Tojo Yamamoto. Within months, he moved down to Texas to wrestle for Southwest Championship Wrestling, before heading to NWA Western States, where he won two Tag Team Championships with Mr. Sato. It was in Texas where he started going by the name Mr. Pogo, due to the constant misinterpretation of his ring name, Mr. Togo, by magazines and promoters.

Quickly frustrated with NJPW's rigid norms, he quit in 1973 and wandered the wrestling circuits of North America. He started in Canada, first in Calgary for Stampede Wrestling, where he wrestled for a year under the name Judo Lee. He then moved west to Vancouver for NWA All-Star Wrestling, wrestling there for a year under his real name.

He was originally a decent amateur, having a pre-professional dispute with the future Jumbo Tsuruta over team representation in the Japanese collegiate championships. He joined Japan Pro Wrestling Alliance but did not debut there, instead joining the new New Japan Pro Wrestling promotion's NJPW Dojo and debuting in 1972.

Tetsuo Sekigawa (関川 哲夫 , Sekigawa Tetsuo, February 5, 1951 – June 23, 2017) was a Japanese professional wrestler best known for his work under the ring name Mr. Pogo (ミスター・ポーゴ , Misutā Pōgo) . He helped popularize hardcore wrestling in the 1990s with "death matches" in promotions such as Frontier Martial-Arts Wrestling, W*ING and Big Japan Pro Wrestling.