PICTURE: Iga Swiatek’s new coach Wim Fissette’s children gear up for Christmas with adorable matching sweaters and Maria Carey’s unofficial anthem

Iga Swiatek's new coach Wim Fissette's children Arthur and Louis have kicked off their preparations for the Christmas season with matching sweaters and Mariah Carey's iconic 'All I want for Christmas is you'.

Fissette's wife Jasmien Clijsner took to Instagram to share an adorable picture of her two sons posing together with reindeer patterns which brought out the Christmasy vibe. Also, the two children posed against the backdrop of a beautifully lit-up Christmas tree that was embellished with a lot of cute decorations.

The picture was accompanied by Mariah Carey's famous unofficial Christmas anthem. Clijsner wrote:

"Xmas sweaters 24/7."

Wim Fissette's kids, via Instagram.

Jasmien Clijsner also shared an adorable picture of Arthur and Louis during this year's Halloween in scary avatars with Arthur, the elder child, seemingly cosplaying Pennywise the Clown from the franchise 'IT'. On the other hand, Louis, the younger child, dressed up as a generic ghost with a flowing white outfit. The cosplay was done for a Halloween-themed school event.

Wim Fissette's wife also reacted to the news of her husband joining Iga Swiatek as her head coach. The Belgian coach joined Swiatek after she split up with her longtime coach Tomasz Wiktorowski. During the same period, Naomi Osaka also parted ways with Fissette, opening the window for the two.

Iga Swiatek's new coach Wim Fissette defended the Pole when her doping controversy came to light

Iga Swiatek and Wim Fissette - Source: Getty

The tennis world was in shock after it came to light that Iga Swiatek had tested positive for trimetazidine during an out-of-competition test in August. However, the ITIA (International Tennis Integrity Agency) came to the verdict that the Pole bore 'No Significant Fault or Negligence' and punished her with a minor one-month suspension. The news divided the tennis fraternity.

Wim Fissette defended Swiatek saying that he was confident about the 23-year-old's innocence.

"Trust is a foundation of good relationships in our team from the very beginning," Fissette recently told The National. "(Iga Swiatek) told me about the case and left me the decision about our cooperation.

"I have been observing her for a long time, her values, her work ethic, her standards. I was confident that she is innocent from the start, so it did not influence my decision about joining the team," he said.

Swiatek also opened up about the 'horrors' she went through after her doping suspension came to light.