On 30 August 2009, Witsel sparked controversy when he broke Marcin Wasilewski's leg by stamping on his ankle during the match between Anderlecht and Standard.
Pada tanggal 30 Agustus 2009, Witsel memicu kontroversi ketika ia mematahkan kaki Marcin Wasilewskipada pergelangan kakinya saat pertandingan antara Anderlecht dan Standard.