Stoke said Johansson suffered an injury against Sheffield United on Monday, a match the 27-year-old Swede had played in. He was replaced in the New Year's Day clash with Hull by 21-year-old Tommy Simkin, whom Stoke have recalled from Leyton Orient.
Stoke have not given a forecast for how long Viktor Johansson will be out. Sweden will play a playoff for the World Cup on March 26 against Ukraine in Valencia.
