Power Struggle featured ten professional wrestling matches that involved different wrestlers from pre-existing scripted feuds and storylines. Wrestlers portrayed villains, heroes, or less distinguishable characters in the scripted events that built tension and culminated in a wrestling match or series of matches. , who defended the IWGP Intercontinental Championship in the main event Power Struggle was headlined by Hiroshi Tanahashi making his third defense of the IWGP Intercontinental Championship against Kota Ibushi. The match was set up during the 2017 G1 Climax, where Ibushi defeated Tanahashi on August 1 with his new finishing maneuver, the Kamigoye. Following the conclusion of the tournament, Tanahashi set out to avenge losses he had suffered during the tournament. After successfully defending his IWGP Intercontinental Championship on September 16 at Destruction in Hiroshima against Zack Sabre Jr., another wrestler who had defeated him, Tanahashi called out Kota Ibushi, offering him the next title opportunity. Ibushi accepted and the match was officially announced on October 10. In the semi-main event of the show, Kenny Omega would make his third defense of the IWGP United States Heavyweight Championship against Beretta. The match was set up on October 29, when Beretta, having recently joined NJPW's heavyweight ranks, challenged Omega, who accepted. Omega did not take the former junior heavyweight as a serious threat to his title and was already focusing on setting up his match at January's Wrestle Kingdom 12 in Tokyo Dome. The match was officially announced two days later. In the IWGP Junior Heavyweight Championship match, Will Ospreay was set to make his first title defense against Marty Scurll. On October 9 at King of Pro-Wrestling, Ospreay ended a four-match losing streak against Kushida and defeated him to become the new IWGP Junior Heavyweight Champion, becoming the first Briton to win the title. After the match, Hiromu Takahashi entered the ring to seemingly challenge Ospreay, but before he could do so, Marty Scurll came out, "snapped" Takahashi's fingers and made his own challenge to his compatriot Ospreay, which was accepted by the champion. The match was officially announced the following day. Ospreay and Scurll faced off during the 2017 Best of the Super Juniors tournament, where Scurll was victorious in his NJPW debut match. , who defended the NEVER Openweight Championship in a bullrope deathmatch The NEVER Openweight Championship would also be defended at Power Struggle with defending champion Minoru Suzuki making his fourth defense against challenger Toru Yano in a bullrope deathmatch. The two had been engaged in what has been called a "seemingly endless feud" since 2013, when Yano scored his first upset win over Suzuki in the 2013 New Japan Cup. Since then Yano has scored multiple wins over Suzuki with one long-term story involving Suzuki's inability to defeat his rival during NJPW's premier tournament, the G1 Climax. During the 2017 edition of the tournament, Yano again defeated Suzuki after tying him up with tape, which put him in line for a shot at Suzuki's NEVER Openweight Championship. At King of Pro-Wrestling, Suzuki teamed with his Suzuki-gun stablemate Zack Sabre Jr. to take on Yano and his Chaos stablemate Hirooki Goto. After scoring a countout win over Suzuki, Yano took his rival's championship belt and fled the arena with it. Backstage, an irate Suzuki requested a bullrope deathmatch against Yano, which was officially announced the following day. The event would also feature the finals of the 2017 Super Jr. Tag Tournament. The first round and semifinals of the tournament took place in October. Roppongi 3K, the reigning IWGP Junior Heavyweight Tag Team Champions, earned their spot in the finals by defeating Hirai Kawato and Kushida and Los Ingobernables de Japon, while newcomer team Super 69 advanced with wins over two Suzuki-gun teams; Taichi and Taka Michinoku as well as El Desperado and Yoshinobu Kanemaru. IWGP Heavyweight ChampionKazuchika Okada and his number one contender Tetsuya Naito, who were set to headline Wrestle Kingdom 12 in Tokyo Dome, would meet at Power Struggle in a ten-man tag team match, where Okada would team with his Chaos stablemates, while Naito would team with fellow members of Los Ingobernabes de Japon. The event was also set to feature the debut of an individual dubbed "Switchblade", who had been featured in vignettes since the 2017 G1 Climax. The previous year, NJPW had done a similar deal with vignettes hyping "Time Bomb", who was revealed as Hiromu Takahashi at the 2016 Power Struggle.
Event
The event featured one title switch, where Marty Scurll defeated Will Ospreay to become the new IWGP Junior Heavyweight Champion and afterwards accepted challenges from not only Ospreay, but also Hiromu Takahashi and Kushida, announcing a four-way match for the title. The event also featured a surprise appearance by Chris Jericho, who challenged Kenny Omega to a match at Wrestle Kingdom 12 in Tokyo Dome. The challenge was immediately accepted by Omega. This marked Jericho's first NJPW appearance since September 23, 1998. Following the main event, where Hiroshi Tanahashi successfully defended the IWGP Intercontinental Championship against Kota Ibushi, "Switchblade" was revealed as Jay White, who was making his return from an overseas excursion. He confronted Tanahashi and challenged him to an IWGP Intercontinental Championship match at Wrestle Kingdom 12, before attacking and laying him out with the Shellshock.