On the contrary, I don't think he would have forgot about his brother for 1 second today.
Imagine growing up a Rangers fan with your brothers and finally being lucky enough to get the chance to play for your boyhood hero's, but your brother sadly passes away, still a very young man, a few days before your debut.
You would be wanting to go out there and do it for him, put in a performance to be proud of. Would be on your mind all game.
John Souttar has more bravery in his big toe than most of the folk on here slating him for his performance today have in their entire body.