Halifax rugby league winger Rob Worrincy has had a suspension for betting increased from six to nine months following a failed appeal.
The London-born Championship player was banned in March after being found guilty of placing a series of bets on the outcome of matches between May 2012 and September 2013.
Worrincy took his case to an independent operational rules appeals tribunal, who heard new evidence provided by the Gambling Commission's sports betting intelligence unit identifying more details of the betting activity, including the device from which the bets were placed.
The Rugby Football League says that activity included 15 bets placed on matches involving Halifax, 12 of which Worrincy played in. The player was also found to have placed a number of bets against Halifax.
Worrincy denied placing the majority of the bets involving Halifax, despite evidence to the contrary from the Gambling Commission.
Worrincy, who remains contracted to Halifax until the end of 2015, will now be suspended until December 24.