MANCHESTER -- Manchester City had two additions to their lengthy injury list as both David Silva and Eliaquim Mangala sustained problems on the day their 100 percent start to the Premier League season was ended.

Manager Manuel Pellegrini criticised his defence for conceding "easy goals" as City, who had won their first five league games, lost 2-1 to West Ham at the Etihad Stadium.

Midfielder Silva was named in the starting XI but had trouble with his calf before kick off while defender Mangala was removed at half-time.

"I don't want to use the excuse of David Silva [being injured for] why we didn't win," Pellegrini said in his news conference. "David has a kick in his calf and he tried in the warm-up but he felt his muscle was stiff so he didn't play. Mangala has a muscle injury."