London, July 18 -- Jos Buttler said Lancashire Lightning must rise to the challenge of winning the "big prize" if they want to claim only their second T20 Blast title.

Buttler top-scored with 77 in Lancashire's win at old rivals Yorkshire at Headingley on Thursday to secure a top-two finish in the North Group with one match to spare.

That guarantees a home quarter-final in September as they chase a spot in Finals Day at Edgbaston later that month.

Since the competition began in 2003, Lancashire have qualified for the knockout stages 18 times, but their sole success remains in 2015.

"We've been a really consistent team but we haven't won the big prize enough," Buttler told BBC Radio Lancashire.

"We have to find a way to win and the qua...