Chavez Jnr faces losing 2m Martinez purse after testing positive for cannabis
11:47 GMT, 20 September 2012
Julio Cesar Chavez Jnr could lose his $3million (1.9m) purse after testing positive for cannabis after his unanimous points defeat to Sergio Martinez last weekend.
The son of the Mexican legend lost his WBC middleweight title in Las Vegas, coming alive only in the last round he dropped Martinez.
But the Argentine recovered to hear the final bell and inflict a first defeat on Chavez Jnr.
In the dock: Julio Cesar Chavez Jnr (left) tested positive for cannabis
'Julio Cesar Chavez Jr will have the opportunity to
explain the situation to the Nevada State Athletic Commission,' said a
spokesman for Top Rank, who promote the fighter.
Nevada boxing chief Keith Kizer confirmed one of the 32 fighters who were in action in Vegas last weekend tested positive for a banned substance, but refused to confirm his identity.
Winner: Sergio Martinez recovered from a knockdown to beat Chavez Jnr
Chavez Jnr is no stranger to controversy having served a seven-month ban for testing positive for a banned diuretic after his 2009 win
over Troy Rowlands, which was changed to a no-contest.
He was also arrested on drink-drive charges in January and struggled to make the weight for his February bout with Marco Antonio Rubio.