Jude Bellingham was spotted sat alongside new girlfriend Ashlyn Castro during Real Madrid's game against Girona on Saturday.
Bellingham missed the game through suspension after being sent off in his side's draw with Osasuna last time out, when referee Jose Luis Munuera Montero showed the England international red for swearing.
It had appeared there been been confusion between whether Bellingham told the official to 'f*** off' or if he said 'f*** you', but Madrid lost their appeal against the two-game ban.
As a result, the midfielder watched on from the stands alongside American model Castro, with whom he went public with earlier this month following reports he had left celebrity dating app Raya.
Bellingham was spotted preparing for Real Madrid's flight home from Manchester Airport following the first-leg of the side's Champions League clash with Manchester City alongside Castro and his mum Denise after he had scored a 92nd-minute winner.
Now, he has been spotted at the Bernabeu for the first time since entering a relationship with Castro, and the duo watched on as Los Blancos were forced to play without one of their star players.
Bellingham, 21, was seen wearing an all-black turtle neck as he sat in the stands to the left of Castro and Denise.
As the couple were displayed on the big screen, Castro donned a smile, while Bellingham remained straight-faced.
Castro had already met the midfielder's parents and chatted to his mum Denise and dad Mark in the family box at the Bernabeu during Madrid's 5-1 win over Red Bull Salzburg in the Champions League on January 22.
She has over 265,000 followers on Instagram and was previously linked with Hollywood actor Michael B Jordan and NBA star LaMelo Ball, though there were rumours that the relationship began before the end of her previous romance.
They are said to have stopped dating last November, around the time she and Jude began to interact. Sources told the outlet that the speculation was 'all lies'.
This has seemingly been confirmed by Castro's ex, LA Clippers guard Terance Mann, who ended the rumours once and for all on a TikTok live.
'Ashlyn is cool, people,' Mann told his viewers. 'I don't know why everybody is on her head about anything. She's cool. Me and Ash are cool.'
He added that he was certain Castro was not unfaithful and that people should 'calm that narrative down'.
Castro appears to live a varied and artistic life based off her exploits on Instagram.
The model has shared photographs from art galleries, skyscraper bars, mountain landscapes, and the gym among a spate of selfies.
She comes from Los Angeles, California.
Bellingham had been linked with Dutch model Laura Celia Valk last year, though she last month described herself as 'single'.
The pair were believed by many to be in a relationship but never went public.
They prompted rumours following a publicity stunt orchestrated by an opportunistic executive at Manchester-based clothing company Pretty Little Thing, where Ms Valk is a model.
It was at a previous glamourous lingerie photoshoot in Madrid that she apparently confided in make-up artists and hairdressers that she and the Real superstar had got close.
In details believed to have been leaked by the firm to a red top newspaper, Ms Valk, 25, was said to be 'completely smitten' and had spent time at his home in the Spanish city.
In terms of the game, Bellingham saw his side earn a comfortable 2-0 lead through goals from Vinicius Jnr and Luka Modric.
With the win, Madrid once again moved level on points with arch rivals Barcelona in LaLiga, though are second on goal difference.
In the Champions League, however, they earned a 6-3 aggregate win over Manchester City in the week to reach the last-16 of the competition.
There, they will face local rivals Atletico Madrid, before a potential clash with the likes of Arsenal and Liverpool down the line.