West Indies all-rounder Andre Russell is facing the prospect of an extension to his one-year ban for a doping whereabouts rule violation.
Jamaica's anti-doping commission, JADCO, is pushing for the maximum two-year suspension to be imposed on the 28-year-old Russell, who was banned in January for one year.
JADCO chief executive Carey Brown told Reuters that his organisation had filed an appeal with Jamaica's five-member anti-doping appeals tribunal.
Russell, a two-times Twenty20 world cup winner, was revealed to have committed the violation a year ago after registering three filing failures in 2015.
That constituted a failed drugs test under world anti-doping agency rules.