Former Nottinghamshire trialist Francois Du Plessis returned to haunt his old side with an unbeaten 57 to hand Lancashire Lightning a five-wicket victory with four balls to spare in the Twenty20 Cup.
The 23-year-old South African, who turned down a contract with Nottinghamshire two years ago to pursue an international career before signing as a Kolpak at Old Trafford last winter, hit seven fours and a six in his 37-ball innings.
The hosts' total of 151 for seven was built around 51 from overseas batsman Adam Voges, with the 28-year-old hitting six fours from 42 balls.
England all-rounder Andrew Flintoff continued his recovery from a side strain with two catches and 13 off nine balls before he was bowled by Rob Ferley.
On a slow, turning pitch, the Nottinghamshire batsmen struggled to time the ball for much of their innings and were thankful to Voges for helping them to a half-decent total.
The Western Australian, promoted to open the innings, hit his second half-century of this year's competition after eventually getting to grips with the conditions following a slow start.
He put on 57 for the second wicket with Samit Patel, who hit Steven Croft over cover for six before he was removed for a confident 31 by leg-spinner Simon Marshall, edging a sweep to wicketkeeper Gareth Cross.
Chris Cairns and Chris Read quickly followed as the run-rate slowed in the middle overs, with Voges pulling Du Plessis to the waiting Flintoff at deep midwicket, leaving Mark Ealham to hit two sixes in a late cameo of 28 off 21 balls.
Lancashire lost Lou Vincent cheaply but opener Mal Loye hit five fours and a six before he top-edged a reverse sweep to point for 32.
Captain Stuart Law added 66 in nine overs with Du Plessis before Nottinghamshire seamer Andre Adams removed both Law and Kyle Hogg in the 15th over.
That brought Flintoff to the crease, with the 30-year-old surviving an lbw appeal and run-out attempt off his first ball as well as a missed stumping off Ferley, who bowled him two balls later.
Croft then ended Lancashire's three-game losing streak with a four over mid-on to keep them in the hunt for a quarter-final place.