Peter Simpson has dropped out of the training partnership with Graeme Rogerson.
Rogerson began training standardbreds last season and took Simpson as a partner.
The duo had 19 wins.
They have had one win this season.
Simpson had returned from overseas.
He first trained in NZ in the 1990-91 season in partnership with Peter Blanchard.
He was subsequently in partnership with Jason Beattie.
Rogerson will seek another partner.
• Horses remaining in the $1.2 million NZ Trotting Trotting Cup at Addington next Tuesday are: Absolute Magic, Awesome Armbro, Bachelorette, Baileys Dream, B Grudge, Changeover, Chilli, Gotta Go Cullen, Keeprightondreaming, Likmesiah, Monkey King, Ohoka Rebel, Presido, Report For Duty, Special Ops, Tribute, Waipawa Lad, Zenad.
• Dubai ruler Sheik Mohammed bin Rashid al Maktoum has paid $US2.5 million ($NZ4.28 million) for the broodmare Away at the Keeneland sales.
Away is in foal to Unbridled's Song.
The ill-fated Eight Belles, a sister to the foal in utero, was runner-up in the Kentucky Derby.
The Sheik paid $3 million for the grade one winner Hystericalady, The day one aggregate of $US48 million was down from $US109 million in the same session of 2007.
