Mystics champion Elena Delle Donne is ready to suit up after undergoing back surgery in December — her second procedure in the span of a year.

“I’m feeling really good,” the two-time WNBA MVP said in an interview with The Post, while discussing her new commercial with Proctor & Gamble in celebration of this summer’s Olympic Games in Tokyo. Delle Donne, 31, is expected to be named to the U.S. roster after making her Olympic debut at the 2016 Rio Games, where she helped the U.S. win its sixth straight gold medal in women’s basketball.

As for when fans can expect Delle Donne back on the court? She’s aiming to return during the WNBA’s opening weekend on May 15, when Washington hosts the Chicago Sky. However, the timetable to get back to full on-court action will depend on her continued progression in rehab. Additionally, Delle Donne will need time to get back in the swing of things following a yearlong absence.

She opted out of the shortened 2020 bubble season in Bradenton, Fla., due to COVID-19 concerns — she was controversially denied a medical exemption by the WNBA though she suffers from Lyme disease, which Delle Donne said made her high-risk for coronavirus (the Mystics ended up paying her salary anyway). Instead she spent the year focused on recovery and rehab after her first back surgery in January 2020. Delle Donne played through multiple herniated discs in her back, among other injuries, while leading the Mystics to the first championship in franchise history in 2019. She had a second back surgery in December 2020 after she had a re-herniation in her back.

“It’s been a long year to not have basketball, which has always been my emotional outlet, so I’ve had to pivot and find things to stay busy,” Delle Donne said, noting her newfound love for art and creation within her woodworking business. She also credited wife Amanda Clifton and their two dogs (a Great Dane named Wrigley and rescue pup, Rasta), for helping her adjust to life off the court.

“This surgery has gone really well,” Delle Donne said of her second back procedure, admitting that the pain from her first surgery was far worse.

“I’m continuing to build strength and I’m learning my body so much more. I’m really grateful [the surgery] happened later in COVID-19, so I’m able to work with people now [due to fewer pandemic restrictions] — where after my first surgery, I kind of just had to rehab on my own, which I don’t know how to rehab on my own. So that made it really difficult.

“Now I’m with my great trainers, who are helping me to change the way I’m moving, walking and running and that’s all adding up to me feeling better and stronger.”

The 2021 WNBA season marks Delle Donne’s eighth in the league and fourth in Washington. With her rehab seemingly right on track, the six-time All-Star is eager to build on the success of 2019.

“We’re a brand new team from the 2019 champions that we were,” she said, “but I’m so excited about the new pieces we’ve added.”

Delle Donne will team up with Tina Charles, the 2012 MVP, whom the Mystics acquired from the Liberty in a three-team trade in April 2020. Charles went on to opt out of the 2020 season after being receiving a medical waiver due to a pre-existing health condition.

Mystics guard Natasha Cloud and center LaToya Sanders both opted out of the 2020 season, as well. Cloud is set to return this season after taking time off to raise awareness for social justice issues. Sanders announced her retirement in March, and will work as an assistant coach on Mike Thibault’s staff. The team’s key free-agent addition, former Seattle Storm sharpshooter Alysha Clark, will miss the season due to a foot injury.

“Obviously there’s always a learning curve of getting used to playing with each other, but everyone’s been in the gym and focused,” Delle Donne said. “I think we’re going to have a dominant team as long as we can put all the pieces together, but that’s what makes the game so fun.”

While fans anticipate Delle Donne’s return, they can see her – along with her sister Lizzie, who has cerebral palsy, autism and is deaf and blind – in Proctor & Gamble’s film for its new “Your Goodness is Your Greatness” campaign. The visual features Olympic and Paralympic athletes with the message of leading with love and showing the world that the true measure of greatness is goodness, ahead of the rescheduled Tokyo Olympics in July.

“I love how P&G takes the power of the Olympics to inspire everybody to just do good and be kind, welcome one another,” Delle Donne said. “If everybody could just do one small act of kindness a day, we’d be living in a much more accepting, open place. That’s why I’m so excited that myself and my sister can be in this.

“I’ve learned so much from being in her presence. All the disabilities she was born with, and the way she’s able to love, belly chuckle, get up with a big smile on her face and spread so much joy and love to everybody she touches — that’s something I’m trying to do by best to emulate and share with the world.”