Senegal striker Ba joins West Ham from Hoffenheim (AP)

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...