Juric received his marching orders on 81 minutes, when he went down inside the box under pressure from Sion defender Jan Bamert.

The Australia international had already picked up a yellow card and referee Nikolaj Hanni brandished another booking for the alleged dive.

Juric appeared shocked by the decision, having not appealed for a penalty.

Luzern boss Markus Babbel reportedly said post-game he felt it was a "dubious referee decision".

Juric has had a mixed season at club level, netting seven goals in all competitions across 19 appearances, but also having been sent off twice.

The ex-Western Sydney man's Luzern are currently seventh in the 10-team Swiss top flight.