Cape Town - New Chelsea signing Alvaro Morata has seen his flying start curtailed with news that he sustained a grade II hamstring strain against Manchester City on Saturday.
The former Real Madrid striker started the 1-0 defeat to City at Stamford Bridge, but left the field in the first half after feeling discomfort in his leg.
Morata withdrew from the Spain squad on Monday ahead of their two World Cup qualifiers against Albania and Israel, with medical tests done by La Furia Roja revealing the extent of the injury.
The 24-year-old has featured in every one of the Blues' first seven games of the Premier League season, scoring six goals and providing two assists to slip seamless into the role occupied by Diego Costa last term.
But he is facing an extended spell on the sidelines and will undergo treatment at the club's Cobham Training Centre, with his recovery expected to take between four to six weeks.