By Keith Idec

For the second time in three months, Otto Wallin’s appearance on Showtime has been ruined by a medical issue.

The undefeated Swedish heavyweight was supposed to box BJ Flores as part of a “ShoBox: The New Generation” tripleheader Friday night at Emerald Queen Casino in Tacoma, Washington. Flores was denied a license, however, which led Salita Promotions, which represents Wallin, to issuing a statement Friday night that announced the Wallin-Flores fight has been canceled.

“As part of the licensing process in the state of Washington, the doctor appointed by the boxing commission to oversee tonight’s event reviewed medical tests and determined that BJ Flores would not be medically cleared to compete,” the statement read. “Based on that opinion, Washington State Department of Licensing spokesperson Gigi Zenk notified Salita Promotions this afternoon that they would not issue BJ Flores a license to fight against Otto Wallin tonight. Due to medical privacy requirements, we are unable to provide further information at this time.”

The 40-year-old Flores (34-4-1, 21 KOs) hasn’t fought since losing by fourth-round technical knockout to interim WBA heavyweight champ Trevor Bryan 11 months ago in Phoenix. Bryan (20-0, 14 KOs) floored Flores three times before their fight was stopped August 11 at Celebrity Theater.

In Wallin’s last fight, he was forced to settle for a no-contest after less than one round of action.

An accidental clash of heads between Wallin (20-0, 13 KOs, 1 NC) and Baltimore’s Nick Kisner caused a cut over Kisner’s right eye midway through the first round of a fight scheduled for 10 rounds April 13 at Boardwalk Hall in Atlantic City, New Jersey. A ringside physician for New Jersey’s State Athletic Control Board determined that Kisner (21-4-1, 6 KOs, 1 NC) couldn’t continue and referee David Franciosi stopped their fight.

The 28-year-old Wallin is ranked No. 6 by the WBA and No. 10 by the IBF.

Showtime will now televise two fights Friday night, starting at 10 p.m. ET/7 p.m. PT.

In the opening bout, Chicago’s Giovanni Mioletti (16-0, 7 KOs) and Ecuador’s Luis Porozo (14-0, 7 KOs) are set to meet in a 10-round super featherweight fight. In the 10-round main event, heavyweight Jermaine Franklin (18-0, 13 KOs), of Saginaw, Michigan, will battle Jerry Forrest (25-2, 19 KOs), of Newport News, Virginia.

Keith Idec is a senior writer/columnist for BoxingScene.com. He can be reached on Twitter @Idecboxing.