He was returned on loan to Modo Hockey of the Swedish Hockey League for the 2014 -- 15 season .
On 27 May 2014 , Ullmark was signed by the Sabres to a three - year entry level contract .
Ullmark was returned on loan to Modo Hockey of the Swedish Hockey League for the 2014 -- 15 season .
On 27 May 2014 , Ullmark was signed by the Sabres to a three - year entry level contract .