Ryosuke Kashiwagi was signed by the Caps to a one-year contract, and is expected to make the move to Washington, DC.
The 26-year-old Japanese defenseman will likely replace Ryan Miller, who will be moved to Philadelphia, in the Caps’ blue line.
Ryosuke will also have a chance to play with the team in preseason and could play a role in the team’s playoff push.
Ryoma Yonebayashi and Yuya Harada will play for the Caps in his new role, and Naito will make his Caps debut with the club in the season opener against the New Jersey Devils.
Ryuto Yonebashi is the first Japanese player to play for Washington, and will play a pivotal role in Washington’s future.
Capitals general manager George McPhee said the trade was a perfect fit for the team.
“We’re looking forward to the opportunity to bring Ryosuke to our organization, and we’re excited to add Ryosuke as an asset to our blue line,” McPee said.
Kashiwagami was signed to a three-year, entry-level contract by the Washington Capitals in June 2016, and was the fourth-round pick of the Washington Caps in the 2014 NHL Draft.
He scored 22 goals and 49 assists for 61 points in 68 games with the WHL’s Kelowna Rockets.
Kashiwa, who was drafted by the Capitals in the second round (39th overall) of the 2014 draft, played three seasons with the Capitals and was named to the NHL All-Rookie Team in 2014.
Naito, who played his junior career with the Kansai Seibu Lions in the KHL, recorded 67 points in 82 games with SKA St. Petersburg of the Kontinental Hockey League in 2016-17.
He also had five goals and six assists for nine points in 12 playoff games.
The Caps acquired Ryosuke from the San Jose Sharks in exchange for a second round pick in the 2018 NHL Entry Draft.
The Capitals have one goal against in the NHL playoffs this season, a 4-3 overtime loss to the Montreal Canadiens on Tuesday.