The home side went ahead with two quick goals within thirty minutes through Kaveh Rezaei who scored from the penalty and Marco Ilaimaharitra.
However, Genk narrowed the deficit before half time after pulling a one goal back through Senegalese Ibrahim Seck in 36th minute.
Congolese, Dieumerci N’Dongala scored an equalizer after the hour mark to level the tie and helped Genk to come away with a point to add at the table.
Samatta was the subject of substitution in 75th minute to make way for Karelis. The Tanzania National Football Team, Taifa Stars skipper marked his 82nd appearances for the club since 2016, and has scored 22 goals in all competitions.
Early this year, Samatta was sidelined for three months due to a knee injury and he only returned to action recently after stepping up his recovery.