Vincent Kompany’s men performed well in the first-half and were unfortunate to find themselves a goal behind at the interval.
However, they struggled a little during the second period and Genk made them pay with a second late on.
Despite that, it was a good workout for the Clarets against tough opposition, with their Belgian opponents in Champions League qualifying action on Tuesday.
Here we take a look at how Burnley’s players performed during last night’s encounter...
1. Standout man
Anass Zaroury was Burnley's standout performer during last night's encounter Photo: Cameron Smith
2. James Trafford - 6/10
Caught under the cross for Genk’s early opener but didn’t allow it to affect the rest of his game on his Burnley debut. Calm and composed on the ball. Photo: Burnley FC
3. Connor Roberts - 6/10
Solid, reliable and did little wrong, although he did cut a frustrated figure towards full-time as the game became stretched. Photo: Alex Livesey
4. Ameen Al-Dakhil - 7/10
Defended well, albeit he was kept busy by the pace of Yira Sor in behind. Unlucky not to score with a header that hit the top of the bar. Photo: Matt McNulty