England captain Michael Vaughan was out for a second-ball duck as Yorkshire lost by 47 runs to Derbyshire in their opening Twenty20 Cup match at Headingley.
Chasing a stiff 182 target, Yorkshire never fully recovered from a poor start to their innings and they finished on 134 for nine to give the Phantoms their first Twenty20 win in six meetings between the sides.
Yorkshire had no-one in the same dashing form as Derbyshire centurion Greg Smith or pace bowler Charl Langeveldt, who claimed two wickets in two balls and finished with figures of four for nine off his four overs.
Vaughan, who made nought and 27 in his two previous Twenty20 matches - which were both with England - slashed at Langeveldt and the ball went straight into the hands of Smith at backward point.
Andrew Gale had already fallen to Graham Wagg in the first over and it became 30 for three with the dismissal of Jacques Rudolph, who hit Wagg straight into the air to give Rikki Clarke an easy catch.
Anthony McGrath and Gerard Brophy tried to pull off a rescue act with a 70 stand in eight overs during which McGrath completed his 50 off 41 balls with four fours and a six.
But when Brophy was stumped by Jamie Pipe off Nayan Doshi it triggered a collapse which saw McGrath depart in the following over when Jake Needham had him caught at long-on by John Sadler.
Tim Bresnan holed out to Clarke off Langeveldt, who bowled Richard Pyrah next ball. He missed out on his hat-trick with a delivery which Darren Gough was able to leave alone outside off-stump.
Earlier, Smith put Derbyshire into a strong position with a fighting century and he figured in a 149 stand in 16 overs for the second wicket with Wavell Hinds to hurry Derbyshire on to a formidable 181 for two after winning the toss.
Smith reached three figures with a single off the penultimate ball of the innings from Bresnan after facing 62 deliveries and striking two sixes and 12 fours. Hinds thrashed 61 from 43 balls with four sixes and three fours.
Yorkshire's fielding was sloppy on occasions and both batsmen enjoyed moments of good fortune, Adil Rashid misjudging a possible catch on the cover point boundary when Hinds was three and the West Indian then being caught by McGrath at cover on 31, only for umpire Jeremy Lloyds to signal no-ball because of a high full toss from Pyrah.
Smith had made his way steadily to 66 when he drove David Wainwright to Gale at long-on who put down the chance. It was an expensive miss because Smith blasted the next delivery for six over mid-wicket and then helped himself to three further boundaries as 24 runs gushed off the over.
Hinds departed in the final over when he was unable to complete a second run before Pyrah's throw from long-on came back to the bowler, Bresnan, who earlier held a return catch from John Birch to become Yorkshire's only wicket-taker.