Are you saying that you think Snodgrass injured Sean on purpose ?
No, I'm saying in a 50/50 challenge the young local lad* who plays for Newcastle gets hurt, loses momentum in his breakthrough season, and the elder midfielder who plays for a club I couldn't care about continues on.
*who happens to be nominated for PL player of month, getting looks for England, scored his first PL goal at home match prior, was bossing matches, etc.