Two-time Formula 1 champion Fernando Alonso has explained why George Russell features on his phone case.

Heading into the Mexico Grand Prix weekend, the British driver was spotted on the back of Alonso's phone in a photo of the paddock board in which the two drivers are placed next to one another.

"What?!" Russell said to Mercedes when told about his unusual feature. "Is this real? Or is this... What me only? No, something's not... I mean, me and Fernando, we've got a good relationship, but phone case relationship? No..."

As Alonso and Russell both arrived at the Autódromo Hermanos Rodríguez for Friday's practice sessions, the Aston Martin driver explained how Russell came to grace his phone case.

"You want to sign it?" Alonso joked as he approached the Mercedes driver. "My niece took

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