 This was dependent on whether Márquez was willing return to the lightweight division to defend his WBO championship, or if he would voluntarily relinquish it to Katsidis in favour of moving up to light-welterweight for potentially bigger fights.By January 2010, Márquez had not yet expressed any desire to defend against Katsidis.A date on 27 March against then-reigning IBF super featherweight champion Robert Guerrero was at one point confirmed for a Golden Boy Promotions event, but Guerrero withdrew from the fight in early February due to family matters.