Wojciech Szczesny is a renowned troublemaker amongst football fans.
The Polish goalkeeper, currently on loan at Roma from Arsenal, isn't afraid to express his opinion and has often got himself into trouble as a result.
And he could find himself at the centre of controversy once again for his reaction after the Gunners pipped rivals Tottenham to second place on the final day of the Premier League season.
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In typically troublesome fashion, Szczesny posted a video of himself (see below) on Instagram singing a song that Spurs fans will hate to hear.
You see, by finishing above Tottenham, Arsenal continued their run of finishing above their sworn enemies in every season since 1995.
It's incredible to think that Arsene Wenger's men have managed to finish second following what has been an underwhelming campaign for the Gunners.
Tottenham, on the other hand, might now consider their season a disappointment too despite claiming a Champions League place.
Elsewhere on the final day of the season, Manchester City all-but-ensured fourth place by securing an important point against Swansea City at the Liberty Stadium.
Louis van Gaal's Manchester United can still mathematically finish in the top four, but they need to beat Bournemouth 19-0 when their clash is rearranged.
The Red Devils' postponed fixture was undoubtedly the biggest piece of news to emerge from the final day after a package was discovered at Old Trafford.
The Theatre of Dreams was evacuated as a result, with further updates imminent.