West Ham United star Edson Alvarez picked up a hamstring injury whilst playing for Mexico two days ago. Edson Alvarez has firmly established himself as a key player for West Ham, after moving to the London Stadium from Ajax for around £34 million last summer. In 31 Premier League games for the Hammers last season, the 26-year-old midfield warrior averaged 2.6 tackles, 1.4 interceptions and 2.3 clearances. He made 38.5 passes on average per match and recorded a completion rate of 86.1% (Who Scored). However, his discipline was a slight concern, after he picked up 11 yellow cards. That said, he …