Alonso's departure followed on from a 3-2 defeat to Barcelona, which leads the way in LaLiga by four points, in the Supercopa de Espana final in Jeddah.

Alonso was highly touted as Madrid's next long-term boss when he replaced Carlo Ancelotti last year, but the former Los Blancos midfielder has now been replaced by his ex club-mate Alvaro Arbeloa.

"It's been short, but it was a pleasure to play for you and learn from you," Mbappe posted to his Instagram stories, alongside a photo of himself and Alonso.

"Thank you for giving me the confidence since Day one.

"I will remember you as a manager who had clear ideas and knows many things about football. Best of luck for your next chapter."

While several players were reportedly disgruntled with Alonso's methods, Mbappe has been in stellar form this season.

Not counting the FIFA Club World Cup, Mbappe has plundered 29 goals in 25 games across all competitions this term, a tally bettered only by Harry Kane (31) among players who feature for clubs in Europe's top five leagues.

But there are also rumours Mbappe could be one of the players that agitated for the removal of Alonso, having been seen in an incident post-Supercopa defeat that appeared to show him disrespecting his coach.

Alonso oversaw 34 games for Madrid, winning 24 of those matches, losing six and drawing four, and boasting a 70.6 per cent win rate.

Overall, of the permanent coaches to take charge of Madrid, Alonso has the fifth-best win rate, after Manuel Pellegrini (75 per cent), Ancelotti (74.8 per cent), Radomir Antic (72.2 per cent) and Jose Mourinho (71.9 per cent).