Haye's seat may be available
David Haye is on the guest list for a heavyweight title fight in Germany this week but he is unlikely to be there.
The Briton, a former WBA heavyweight champion, is expected to give the tournament in Stuttgart a miss in the wake of a police probe against him.
The main fight is between Marco Huck, a German, and Alexander Povetkin of Russia.
Munich prosecutors are investigating assault charges against Haye and fellow-Briton Dereck Chisora after their brawl at a press conference last Saturday night.
Chisora, who had lost to Ukrainian Vitali Klitschko, the WBC champion, was detained for several hours and questioned over the incident.
Haye had already returned to Britain before the authorities launched the probe. German police intend asking Scotland Yard for help in their effort to talk to Haye.
Haye is apparently in the United States. He posted a Twitter message saying he was "Jetting off to warmer climates" and British newspapers reported that he had flown to Las Vegas.
Chisora and Haye have apologised for the brawl, but could face fines from German authorities and sanctions from boxing organisations.