Former Pakistan cricketer Salman Butt has lost his appeal to the Court of Arbitration for Sport against a 10-year ban for spot-fixing.
The former Test captain was handed the ban - five years of which are suspended - by the International Cricket Council in 2011 for his part in the spot-fixing scandal that also involved team-mates Mohammad Asif and Mohammad Amir.
The 28-year-old Butt was named as the orchestrator of a plot to bowl deliberate no-balls in the Lord's Test against England in 2010.
Amer Rahman, a legal advisor from Farani Javid Taylor Solicitors, said in a statement: "Both Salman and us are bitterly disappointed with the decision of the Court. Salman has been in a very dark place over the last few years and he was hoping that he would be successful in this appeal.
"We will not be giving up. In the coming days and weeks, we will be exploring every other available avenue."
Solicitor Daniel Rajah, also part of Butt's legal team, added: "Anyone that has met Salman will know of his passion for cricket. It's in his heart and soul. All Salman has ever wanted is to play the sport he loves.
"It is therefore extremely disappointing that the decision has gone against him. Over the coming weeks and months we will do our best to support Salman and we will be doing everything we can for him."
Butt was handed a 30-month jail sentence in November 2011, but was released the following June, with Asif and Amir serving shorter sentences.
Mazhar Majeed, the London-based sports agent at the heart of the fixing scandal, was also jailed.
In 2011, Butt was banned for 10 years by the ICC, with five years suspended; Asif was banned for seven years, with two years suspended; and Amir was banned for five years.
Asif has also appealed to CAS over his ban, but Amir has chosen to serve his.