Theo Walcott told ITV News that he hadn't heard anything about a Europol claim that a Champions League match held in England had been fixed.
"It's a shame if it is found that way, but hopefully it's not," the Arsenal and England forward said.
"It's something that we don't want involved in the sport at all...it's something in the game that we need to get out."
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Police believe it is a "distinct possibility" that Halliwell was a serial killer, beyond the two murders he was convicted for.
The bodies were seen lined up in white and black body bags along Libya's western shoreline in stark and grim images released by aid workers.
Rebecca Steinfeld, 35, and Charles Keidan, 40, objected to the "patriarchal baggage" of "the institution of marriage".