The Islanders made the obvious move to shore up the right side of their defense Tuesday, bringing back Tony DeAngelo for another year just before free agency officially started.

DeAngelo inked a one-year deal at a reported $1.75 million to return to the team that gave him another shot stateside after the defenseman started last season in Russia, assuming his NHL career was kaput.

“We wanted to get Tony DeAngelo done,” general manager Mathieu Darche said on a Zoom call. “Tony, you saw it last year, he played really well when he came here. He can run a power play. So excited to bring him back at a number that makes sense for us.”

After Noah Dobson was traded to the Canadiens ahead of the draft, bringing back DeAngelo looked like the easiest route for the Islanders to find a right-handed replacement in a market that was too thin to have a realistic chance of acquiring a superstar.

DeAngelo, who had 19 points in 35 games with the Islanders last season, will almost certainly run the power play with Dobson gone and showed last year that he’s capable of playing a heavy minutes load if necessary.

He also said on breakup day that returning to the Islanders was his first choice, making the deal a win-win for both sides.

“For me personally, when I came back, I wasn’t expecting anything really,” DeAngelo said. “So to get a chance to come back and play again, it was great. [Don’t] take a day for granted. Hopefully can continue to be in the league going forward and keep going the same way I was here.”

The Islanders also added goalie depth in David Rittich, who signed a one-year deal that came in at $1 million, per PuckPedia.

The 32-year-old had an .886 save percentage and 2.84 GAA in 34 games with the Kings last season and, in essence, functions as an insurance policy on Semyon Varlamov, who is coming off a season-ending knee injury.

Darche maintained Tuesday that Varlamov’s rehab is on track.

“The rehab’s going well, but we still have to prepare in case something happens,” Darche said. “David is a veteran around the NHL. He’s a very capable NHL goalie, so we’re excited to have him and increase our depth in net.”

Defenseman Ethan Bear, who last played in the NHL with the 2023-24 Capitals, signed a two-way deal with the Isles.

Bear spent last season with AHL Hershey, scoring 10 goals with 36 assists.

In addition to DeAngelo, the Islanders got another key bit of housekeeping done by re-signing Simon Holmstrom to a two-year deal at a reported $3.65 million per annum.

Holmstrom is coming off a 20-goal season in which the 24-year-old broke out as a top six forward.