Amir scythed through the Royals top-order with a sensational spell of seam bowling upfront by snaring four wickets in the Powerplay.
Mortaza endured a torrid run in the 50-over marquee event where he managed a solitary wicket across eight games.
'I still have that love for the game and that passion for the game as well. And I would love to carry on as long as possible' - Gayle
Skipper Shanaka scored 75 off 31 before bowlers steamrolled Rangers' batting line-up
Kayes scored 61 off 38 balls whereas Walton made 49 off 30 balls as Challengers won
PSL Schedule Live Streaming and PSL 5 Matches Details
PSL 2020 schedule tweaked: Semi-finals to take place instead of playoffs
Qualification scenarios: All teams in contention for a spot in the semi-finals
PSL 2020 knockout games called off owing to coronavirus pandemic
Steyn, Munro among four Islamabad United players pull out of PSL
Asad Shafiq links up with Multan Sultans for remaining PSL fixtures
Tom Banton, Alex Hales among others to head back over coronavirus fears
Brian Lara picks the top 3 favorite teams for the ICC T20 World Cup
Alex Hales goes in self-isolation over coronavirus symptoms, quashes reports of testing positive
Peshawar Zalmi rope in Sikandar Raza amid exodus of foreign players