Albion defender Leon Balogun has been hit by another World Cup injury blow.

His tournament debut is in doubt in Nigeria's opening game in Russia against Croatia tomorrow night.

Balogun missed training with Nigeria yesterday morning and is awaiting the results of a scan.

The 29-year-old, signed by the Seagulls from Mainz last month, sat out the finals in Brazil four years ago after breaking a foot on an advertising board during his Nigerian debut against Mexico in the run-up to the tournament.