Luka Modric and Toni Kroos have both sent Casemiro a farewell letter and it's emotional reading

Real Madrid pair Luka Modric and Toni Kroos have both penned an emotional goodbye message to their soon-to-be former teammate Casemiro.

It was confirmed on Friday night that Manchester United had reached an agreement with Los Blancos for Casemiro, with the transfer being subject to an agreement of personal terms, UK visa requirements and a medical.

United, who currently sit bottom of the Premier League following defeats to Brighton and Brentford, say they "look forward to welcoming Casemiro to Old Trafford" in a statement on their official website.

We are delighted to have reached an agreement in principle for the transfer of @Casemiro 🇧🇷#MUFC

— Manchester United (@ManUtd) August 19, 2022

Casemiro's imminent arrival, believed to be worth around £59.5million plus £8.5m in add-ons, will mean the end of Modric, Kroos and Casemiro.

After seven trophy-laden seasons together at the Bernabeu, a period where they lifted a staggering five Champions League trophies, the iconic midfield trio will be no more.

Such is their incredible bond, both Toni Kroos and Luka Modric have penned an emotional farewell letter to the Brazilian as he prepares to embark on a new challenge.

Here is the transcript of Toni Kroos' letter via Spanish publication MARCA.

With you, my dear Case, it was impossible not to break a sweat... in any situation. Because you wouldn't let us relax even in the Turkish bath. 

Staying there was another torment: you told someone to go and you almost had exercise bikes and weights ready there. A notice for your new colleagues to know. Because with you, even the Turkish bath was a gym... and you only allow people to lie down when it's time to do sit-ups.

I'm going to miss you. As an exemplary professional. As a top player. As a fighter who saved me from several... But, above all, as a good person.

We've made history, man! What a legendary stage. Now our sports paths separate, but our friendship remains. I assure.

I wish you the best, see you soon.

Good luck.

Your Tony.

And here is the transcript for Luka Modric's letter.

Dear Case, I still remember your debut with our club... How nervous you were! I asked you to be calm and now I think about it and see how it turned out. What you have achieved! It was also my first season and neither of us could imagine what football had in store for us.

You have become a true leader. You have been for your teammates and for Real Madrid. We will always remember it.

We have won a lot together, but I keep the moments that nobody sees. With the day-to-day work in Valdebebas. And especially with the jokes, because you have always been in a good mood, even in moments of tension or when there were failures.

Those laughs with you gave me peace of mind. Just like looking back and seeing you, knowing there's going to be a lot of "Njega-Njega." You have been the best bodyguard in the world.

I'm going to miss you, but I wish you the best. It is what a professional and a person like you deserve.

Thanks for everything and good luck, friend!

Kroos & Modric's goodbye letter for Casemiro. Shows the incredible bonding they have on & off the field. One of key factors of their so many successes. pic.twitter.com/eAyZ7DCtKg

— Football & Witball ⚽🎩 (@FootballWitball) August 20, 2022

So there we have it. The end of an era.

Thoughts on Casemiro's impending move to Manchester United? Let us know in the comments.