His brother revealed on social media that Guo had suffered a subarachnoid haemorrhage—a severe form of stroke caused by bleeding in the brain—as a result of the accidental collision.
The Super Eagles have managed just three points from four games, leaving them fifth in Group C and under immense pressure to revive their World Cup hopes.
The Super Eagles will continue their campaign in a match against Zimbabwe at the Godswill
Akpabio Stadium in Uyo, subsequent to their clash with Rwanda on Friday.
Morata, has spoken publicly in the past about his mental health struggles, revealing last year that he nearly quit international football due to depression and panic attacks.
For Chelsea, it was an uncharacteristically flat performance. Mayra Ramirez was locked in a physical battle with Aleixandri but struggled to make an impact.
