Carlos Sainz's girlfriend Rebecca Donaldson drops a 2-word reaction to Charles Leclerc's partner's Instagram post 

Rebecca Donaldson, girlfriend of F1 driver Carlos Sainz, dropped a heartwarming comment on Charles Leclerc's partner, Alexandra Malena Saint Mleux's, Instagram post. The latter had posted a brand collaboration with 'MESHKI,' and Donaldson called Alexandra the best in the comments.

From 2021 to 2024, Sainz and Leclerc were teammates at Scuderia Ferrari. Along with the drivers, their partners also developed a friendly bond with each other.

Sainz's girlfriend, Rebecca Donaldson, recently called Leclerc's partner, Alexandra Malena Saint Mleux, 'the best' on Instagram. The latter posted an advertisement for the 'MESHKI' clothing brand. She posted in a red outfit, leaving the fans in awe.

In a heartwarming comment, Rebecca praised Alexandra's looks and said,

"The best 👏🔥❤️."

Rebecca Donaldson's comment on Alexandra Saint Mleux's picture [Image Source: @alexandrasaintmleux/Instagram]

This isn't the first time the duo have complimented each other on Instagram. They often engage through social media comment sections, hyping each other's work commitments. Not only that, but Rebecca and Alexandra have also been spotted hanging out in the F1 paddock.

Meanwhile, after 2025, Carlos Sainz and Charles Leclerc's partnership ceased to exist. Ferrari replaced the Spanish driver with seven-time world champion Lewis Hamilton.

Sainz, on the other hand, joined hands with Williams Racing on a multi-year contract. Leclerc, however, remains untouched, as he signed a multi-year extension contract with the Italian in 2024.

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Carlos Sainz opens up on the mindset behind choosing Williams

Carlos Sainz at the F1 Grand Prix of Spain - Source: Getty

After being replaced by Ferrari, Carlos Sainz couldn't land a seat at a top team and shook hands with Williams Racing. However, the Spaniard has no regrets, as he wants to build Williams into a top team.

Talking to Motorsport.com, he said:

"I’ve come to my own conclusions. But I’ll keep them to myself. I believe the people in F1 know perfectly well why certain choices are made—I don’t need to explain it in front of a microphone. So I told myself, If I can’t join a top team, I’ll help build one."

"At Williams, I saw the potential to start a great story. I spoke at length with James [Vowles] about the project he had in mind, and I decided to bet on Williams because it seemed like the best opportunity to build a top team. Six months into this journey, I can say I’m even more convinced than when I signed. We’re all working 100% to achieve this goal."

However, Carlos Sainz is keeping a realistic approach. He believes Williams isn't ready to compete for the championship in 2026. With the new engine regulations coming in, the team will need time to settle in and see how the pecking order scuffles, if at all, it does.

Regardless, Sainz is committed to giving his absolute best to Williams and ensuring steep growth in the next few years.