Wladimir Klitschko has criticised David Haye and Derek Chisora in the run-up to his world title defence against Alexander Povetkin.
The Ukrainian described his opponent as "very respectful" and insinuated that the British heavyweights are quite the opposite.
"Barking dogs never bite and Povetkin is not a barking dog," BBC Sport quotes Klitschko as saying.
"There is no controversy like with Haye, when he said all that crazy stuff before our fight. There's no spitting water or slapping like Chisora did before he fought my brother.
"Povetkin is a very respectful, calm and a very self-confident guy. I believe he will deliver a great performance."
Klitschko will defend his IBF, WBO and WBA 'super' titles against Povetkin this evening, with Haye, Chisora and Tyson Fury watching from the ringside.
