Friday's televised t20 Blast fixture between Lancashire and Yorkshire is probably the most eagerly-anticipated county clash of the season thus far.
The Roses derby always has added fire to it and a bumper crowd is expected at Old Trafford.
James Anderson, Liam Plunkett and Gary Ballance will be unavailable for their sides after receiving call-ups to the England Test squad against Sri Lanka.
However, Jos Buttler will return to the Lightning side in place of young Alex Davies behind the stumps, and Jonny Bairstow's non-selection from England means he is included in Yorkshire's 14-man squad.
After an unbeaten 53 for the Lancashire 2nd XI on Thursday and a promising start to the t20 season, many eyes will be on young all-rounder Jordan Clark.
Andrew Flintoff also played in that game, taking 2-39 in four overs and scoring 16 opening the batting, including a huge six over mid-wicket.
Overseas player Junaid Khan was the hero against the Birmingham Bears last time out, taking 4-12 in his four overs having managed 3-21 against the Durham Jets in the game before.
He will be a key figure in Friday's game, and recently told of his delight to have rejoined the Red Rose, saying: "I am delighted to be back at Lancashire. I can’t express in words just how lucky I feel to be asked by them to come back for a second spell here. I had some other offers on the table from Counties but I had no hesitation in signing for Lancashire once they were interested."
The Vikings beat Derbyshire by eight wickets with six overs to spare last time out, largely thanks to an impressive 61 not out from Alex Lees. They are fifth in the North Group, having won one game, lost one game and had a third washed out.
Ryan Sidebottom misses out, as he has not properly recovered from a hamstring strain.
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