FORMER champions Al Rayyan returned to winning ways by defeating Police 25-17, 25-17, 25-20 in the Qatar League last week.
Rayyan had suffered back-to-back losses to Qatar SC and Al Ahli, but they were back to their best as they handed formidable Cops their first league defeat.
Cuban professional Yosleider Cala teamed up with Mubarak Dahi Waleed to pose Police defence plenty of problems.
Qatar international Chigbo John was the saving grace for Police, but Rayyan, coached by Croat Igor Arbutina, were simply unstoppable in the match played at the Al Arabi Sports Club.
The nine-time league champions will play Al Sadd on Friday.
Holders Al Arabi, the only remaining unbeaten side in the league, maintained their clean sheet with a 25-21, 25-27, 25-17, 25-20 win against Qatar SC.
In other action, El Jaish beat Sadd 25-20, 25-19, 25-16 and Al Shamal overcame Al Khor 25-21, 23-25, 18-25, 25-20, 15-12.