The 23-year-old has cut short a two-year loan with Norwegian top-flight side Stabaek to join the Scottish Premiership squad from Estonia's Flora.

There is an option to extend Vihmann's loan by a further year or make the move to Tommy Wright's side permanent.

Wright has, however, dismissed reports linking the Perth club with Nottingham Forest striker Jason Cummings.

"Jason is a player I enquired about in January, but he is not one I am making any inquiries about in this window," the manager said of the former Hibernian forward.

"We have got other targets and hopefully we can get somebody in because it is quite evident in the last two games that it is an area of the pitch we need to strengthen."

Vihmann, who has played 19 times for his country and has been with Flora since 2014 could be involved in Saturday's Scottish League Cup tie against Forfar Athletic.