The highly touted co-main event to June 25th CBS card headlined by Keith Thurman versus Shawn Porter has been scratched with Abner Mares not passing a pre-fight medical exam. Mares was set to face Jesus Cuellar, no word of a bout to replace the action.

Below is the statement released by DiBella Entertainment

Regrettably, due to a medical issue that renders former three-division world champion Abner Mares presently unable to fight in New York State, the Cuellar vs. Mares fight has been cancelled and will be replaced on the Showtime Championship Boxing on CBS telecast next Saturday, June 25. Abner’s condition is in no way life-threatening, nor was it revealed in a blood or urine test; there was no use of any drugs, including PEDs or other banned substances.

In honoring Abner’s right to medical confidentiality, no further information will be released on this situation unless he chooses. An announcement will be forthcoming with respect to the replacement bout that will open the broadcast.