By Rick Reeno has learned that an interesting heavyweight bout is off the Vitali Klitschko-Chris Arreola undercard on Saturday night at Staples Center in Los Angeles. Undefeated Russian contender Alexander Ustinov (17-0, 14KOs) was going to face Cedric Boswell (30-1, 24KOs).

I heard Ustinov was unable to get in the country due to a visa issue. No word if K2 plans to reschedule the fight to a later date. I hear Boswell has already touched down in Los Angeles and was pretty upset when he was advised of the news.