Getty/GOALSoham Mukherjee'So, he does smile' - Marcus Rashford takes subtle swipe at Roy Keane after 'why is he upset' criticism from Man Utd legendMarcus RashfordManchester UnitedRoy KeanePremier LeagueMarcus Rashford has taken a subtle swipe at Roy Keane following the Manchester United legend's "why is he upset" criticism.Article continues belowArticle continues belowArticle continues belowKeane criticised Rashford for Spurs celebrationForward responded with smiling photo on social mediaHas scored twice in his last two league appearancesArticle continues below