Chelsea boss Frank Lampard has confirmed a hamstring injury for Hakim Ziyech.

Lampard admitted Ziyech suffered a hamstring injury during his side's 3-1 victory over Leeds on Saturday night. The left-footed winger was replaced by Christian Pulisic after half an hour.

Summer signing Ziyech started the season in the treatment room and has only recently started to flourish for the Blues.

However, Lampard has hinted that the Moroccan may have a new problem sustained in the win against Leeds at Stamford Bridge.

"Hamstring. He felt it go," Lampard said. "We will have to see over the next few days."