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
Domingo confident of Bangladesh's solid show in Pakistan
Pakistan Under-19 team claims a dominant win in their opening World Cup game
Melbourne Stars sign uncapped quick Dilbar Hussain as replacement for Haris Rauf
Amad, Ahsan in good spirits ahead of T20I series against Bangladesh
Honours even on rain-curtailed day as Crawley hits maiden fifty
Tearaway quick Haris Rauf vows to make most of opportunity
Bangladesh announces squad for Pakistan T20Is
PSL Squads 2020 - PSL 5 Teams and Players List
Lakmal's final day heroics seals 10-wicket win for Sri Lanka
Haris, Abbas star as Pakistan ensure quarter-finals berth