West Ham have snapped up Czech international Alex Kral on a season-long loan with an option to buy at £12million.
The Spartak Moscow midfielder completed his medical abroad as West Ham rushed through the paperwork before tonight's 11pm deadline.
The 23-year old has been on West Ham's radar for several months and played for the Czechs during Euro 2020, and he will now link up with his international team-mates Tomas Soucek and Vladimir Coufal.
Hammers boss David Moyes said: 'I am delighted to welcome Alex to West Ham United,' said Moyes.