Reports now say there could be some foul play involved.

I don't want to find out that he's met with foul play.

There was no sign of foul play, because his body has never been found.

On the other hand there is no evidence to support the idea of foul play.

Police do not believe any foul play was involved however.

The police said they found no evidence of foul play.

"Any reason to think there might have been foul play?"

We have reason b432 to believe there has been foul play.

His mother came forward to tell the media that no foul play was involved.

The police said there was no evidence of foul play.