Sussex have confirmed the signing of Afghan bowler Rashid Khan for the first half of this year's T20 Blast.

The news marks a reunion for the 19-year-old - currently the world's second best bowler in T20 - with head coach Jason 'Dizzy' Gillespie after their spell together at the Adelaide Strikers in the Big Bash League.

"It has always been an ambition of mine to play county cricket and the fact I get to link up again with Dizzy is very exciting," Khan told the Sussex website. "I have heard a lot of good things about Sussex and am excited to join a talented squad and I hope to help the team push for T20 silverware."

Gillespie added: "We are delighted that Rash has agreed to join us at Sussex. His form for Afghanistan and the T20 teams he has played for over the last couple of years has been phenomenal. I have worked closely with Rash at the Adelaide Strikers in the BBL and have been incredibly impressed with his attitude, work ethic and team-first mentality.

"We look forward to welcoming him to the Sharks where I'm sure he will quickly become a fan favourite."

Last month, Khan was retained by the Sunrisers Hyderabad for a fee of £1m in the IPL auction.