During the Blast group stages, 14 games will be split between the left-arm seamers.
Nottinghamshire have signed left-arm seamers Ben Lister from New Zealand and Fazalhaq Farooqi from Afghanistan for the group stages of this season's T20 Blast as they hope to replicate the success of Shaheen Shah Afridi last summer.
Lister has won 13 limited-overs caps for his country but is unlikely to feature in their World Cup plans. He will join Notts for the first eight games of the Blast's group stage this season before being replaced by Farooqi. Subject to a no-objection certificate from the Afghanistan Cricket Board, Farooqi will make his first appearance in county cricket after the T20 World Cup to spearhead Afghanistan's seam attack.
Shaheen took 22 wickets in 14 games for Notts last season. He took four in a single over in a defeat to Birmingham Bears. But he is unavailable for the Blast this summer due to the T20 World Cup, where he is captaining Pakistan, leaving Notts with two options.
Peter Moores, Notts' head coach, said in a press release:
"Ben is an exciting talent who is establishing himself on the world stage after consistent performances domestically. He's made a difference in the teams he has played for, and has the potential to do the same with us. Meanwhile, Fazalhaq is a world-class player with experience on the franchise circuit and in international cricket, with a proven ability to bowl at the death. His know-how under pressure will be important in our group stage run-in."
Notts were knocked out in the quarter-finals by eventual champions Somerset last year after finishing fourth in the North Group. This year's Blast team will be a new-look outfit following the departures of Samit Patel (Derbyshire) and Jake Ball (Somerset). Steven Mullaney is expected to play predominantly in the Notts Second XI after taking on a player-coach role.
Alex Hales will be unavailable for the second half of the group stages due to his commitment to play for Galle Marvels in the Lanka Premier League. Additionally, Jack Haynes, Dillon Pennington, and Josh Tongue have joined the team from Worcestershire. Will Young from New Zealand will also be part of the T20 set-up, and Joe Clarke will serve as the T20 captain.