On Monday, Olympic swimmer Grant Hackett announced he got married.

Posting the news to Instagram, the 40-year-old shared he and girlfriend Sharlene Fletcher quietly tied the knot on Sunday.

Side note... a 2020 Zoom call from the future. Post continues below.

"I feel so blessed to call you my beautiful wife @sharhackett," he wrote. "With a year that’s been filled with so much uncertainty it’s been such a perfect way to finish off 2020.

"With COVID-19 continuing to delay our nuptials and the ability to properly plan our wedding, with all of our friends and family in the one location both locally and from overseas, Sharlene and I just wanted to say 'I do'!"

The Olympic gold medallist explained that the couple would have a big celebration once COVID-19 allows. But for now, two of the couple's best friends, their son and Hackett's twins from his previous marriage were more than enough.

"Even though this is not our 'official' wedding with all of our friends and family, it still could not have been a more intimate and perfect way to marry my best friend," he wrote.

"I will always take care of you and our family. I love you with all of my heart. Thank you to Jagger Hackett for being the most amazing ring bearer and best man and our best friends @felipe_may_araujo @em.turner_araujo to witness this special moment."

Since Grant Hackett hung up his goggles in 2008, here's everything we know about his life after his stellar swimming career.

Grant Hackett's relationships.

On 14 April 2007, Hackett married Aussie singer Candice Alley.

In 2009, the couple announced they were expecting twins, and in September, their son Jagger and daughter Charlize were born.

After five years together, in May 2012, Hackett and Alley announced their separation.

"I can confirm media speculation this morning that Candice and I have separated," Hackett said. "I want to be dignified in my approach to everything and ensure the children's needs are paramount and put first."

In August 2013, the couple divorced.

After their divorce, Hackett opened up about his struggles with anxiety.

"I get anxiety, I haven’t handled the past few years very well in bits and pieces... ever since I went thought that divorce and all the publicity that followed," he told Kyle and Jackie O.

In 2015, Hackett met vegan chef Sharlene Fletcher. Two years later, they started dating.

In September 2019, the couple announced they were expecting their first child together. And in January 2020, Edward Anthony Hackett was born.

While Sharlene was pregnant, Hackett proposed.

"So happy and excited to call this beautiful, amazing, kind and supportive soul my fiancé," he wrote on Instagram.