"I am very sorry for this final cancellation especially for the fans, " said 34-year-old Klitschko.

BBC: Wladimir Klitschko and Dereck Chisora

"I deeply regret this and am very sorry for my behavior, " Domenici, 80, said in his statement.

NPR: Domenici Acknowledges Having Son Outside Marriage

There is no excuse for this, and I am deeply sorry.

WSJ: Ohio State, Gordon Gee: Ohio State's Gee Apologizes for Comments About Catholics

Neither do I say sorry for writing this book of which I am extremely proud and I am convinced the princess would be proud of too.

BBC: NEWS | UK | Statements in full