Senegal striker Ba joins West Ham from Hoffenheim

Senegal striker Demba Ba has left German club Hoffenheim to join Premier League struggler West Ham.

The 25-year-old Ba has signed a contract through June 2014 despite failing a medical examination at Stoke earlier this month.

West Ham didn't disclose his transfer deal but said it ''will be heavily dependent on appearances.''

Ba says ''it was a long story but now I'm happy because it had a really good end and I am glad to be here.''