Pat Cash is considering applying for a restraining order against Mark Philippoussis after claiming to have received two threatening phone calls last week.

According to Sydney newspaper the Daily Telegraph, 1987 Wimbledon winner Cash said he was "repeatedly threatened with the most hostile form of physical violence" by Philippoussis.

Cash added he might make a formal complaint to police about it.

The news threatens to become a serious distraction for Philippoussis in the lead-up to Australia's first-round Davis Cup tie against Sweden starting on Friday in Adelaide.

Cash said Philippoussis rang him on Wednesday after the former world No.4 publicly blamed pop star Delta Goodrem's presence at the Australian Open for the Scud's fourth round loss to 50th seed Moroccan Hicham Arazi.

On Melbourne radio, Cash had insinuated that the 19-year-old singer had kept Philippoussis up the previous night of the match.

The 27-year-old Philippoussis then phoned Cash to vent his anger before Cash called him back later to explain his media comments.

"Both times he completely lost his cool and evidence would seem to suggest that it's pretty clear I hit a nerve," said Cash, who used to coach Philippoussis before their relationship soured in 2000.

"I'm not prepared to suffer such a string of foul-mouthed insults - not from anyone, least of all Mark Philippoussis - who I regard as the most blatant waster of talent in the current game of tennis.

"Currently I'm deciding whether to make a formal complaint of his threatening behaviour to the police.

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