Riccardo Calafiori's attempts to time-waste at the end of Roma's Europa League tie with Ajax were met with fury by the Dutch side's ball boy, who threw a ball at the Italian's head.
With the Serie A side winning 2-1 in the closing moments of Thursday night's quarter-final in Amsterdam, Roma defender Calafiori took his time to take a throw-in and kicked away several balls handed to him to wind down the clock.
The Ajax ball boy on his side of the pitch then threw a ball fiercely into Calafiori's face which angered the 18-year-old defender, who appeared to shout at him, 'Think better, disgusting!'
Calafiori, who was booked for his time-wasting antics by referee Sergey Karasev, admitted he sympathised with the ball boy for being angry in the closing moments of the game.
'I thought many things at that moment,' Calafiori told Sky Sport Italia. 'Fortunately, I managed to stay calm.
'I will say that seeing your opponent waste time in a situation like that would've irritated me too. I won't say I respect him, but I do understand.'
Calafiori helped Roma to come back from behind against the Dutch giants, with Roger Ibanez's late goal sealing a precious 2-1 first-leg victory to take back to the Italian capital.