The International Cricket Council's anti-corruption unit will have a closer look at Kenya's stunning World Cup victory over Sri Lanka, sources said on Wednesday.

The ACU, headed by former London police chief Paul Condon, has asked the official broadasters to supply the tapes of Monday's match, at Nairobi, which Kenya won by 53 runs.

"Yes, the tapes have been asked for," the source said.

"I believe it is the first match in this World Cup where the tapes have been summoned."

The ACU, formed two years ago after the match-fixing scandal broke, promised in its initial report that it would ensure a corruption-free World Cup.

It has also said that a random selection of matches will be reviewed routinely and the Sri Lanka defeat has obviously caught its attention.

Sri Lanka, who romped through their first three matches, were shot out for 157 off 45 overs while chasing Kenya's modest 210 for nine.

It was the third biggest upset in World Cup history after the Kenyans defeated the West Indies in 1996 and Bangladesh shocked eventual finalists Pakistan in 1999.