Russian Olympic swimming champion Evgeny Rylov has lost his sponsorship deal with Speedo after attending a rally organised by Vladimir Putin in Moscow last week, reports say. webinsidethegames news site.

Rylov, who won two gold medals at last year's Tokyo Olympics, was seen at the rally with a letter "Z" on his shirt - the symbol that has come to identify Russia's occupation of Ukraine.

The sport's world governing body Fina said it was "deeply disappointed" by Rylov's appearance at the rally and would investigate.

Swimwear manufacturer Speedo told insidethegames that it had "ended its sponsorship of Rylov with immediate effect" following his participation in the event.