Yorkshire made a winning start to their Twenty20 Champions League qualifying campaign with a five-wicket victory over Uva Next at The Wanderers, Johannesburg.
The Tykes, competing in the world event for the first time, boosted their hopes of reaching the main draw by beating Sri Lanka's inaugural Premier League champions with a perfectly-timed run-chase.
South African David Miller (39 not out) was Yorkshire's star man, recovering from a nasty blow to the head to help the team chase down 150-7 with just three balls to spare.
The 2012 Friends Life t20 runners-up will qualify for the main event with victory over Trinidad and Tobago on Wednesday.
Miller and Adil Rashid (36no) were there at the end for Yorkshire after Australian opener Phil Jacques (32 off 21) had put them above the required rate.
Their progress was stalled in the eighth over when, well-placed on 66-2, Uva spin bowler Dilshan Munaweera (3-32) struck in successive deliveries to remove left-handed duo Jacques and Garry Ballance.
Rashid was handed a life in the 17th over when Bhanuka Rajapaksa dropped a regulation catch at deep midwicket and the Yorkshire all-rounder made him and his team-mates pay with back-to-back boundaries off Umar Gul in the following over.
Gul had earlier struck Miller on the head with a sharp, rising delivery, but, when young wicketkeeper David Hodgson was dismissed, the South African returned and bludgeoned Munaweera for four, six, four in a pivotal penultimate over.
Yorkshire had earlier produced a disciplined bowling and fielding performance to restrict Uva Next to a below-par total on a true batting pitch.
Captain Thilina Kamdamby top-scored for the Sri Lankans with 29 not out, but pace duo Moin Ashraf (2-29) and Steven Patterson (2-30) ensured wickets fell at regular intervals.