Chelsea boss Frank Lampard explained hooking Timo Werner at halftime of their 3-1 defeat to Arsenal.

Lampard made two half-time changes with Jorginho on for Mateo Kovacic and Callum Hudson-Odoi for Werner. He was asked about taking off the German.

"The goals not going in is certainly something an attacking player gets judged on and I could have made more subs," he responded, "but I felt I had to make subs in those two areas to inject energy.

"Timo today wasn't giving us enough with or without the ball and some of it we have to give him time because it is a different league but also we have to get there quickly, so we'll see about his tiredness. I will have a conversation with him but it was a decision I just felt I had to make. I had to make changes to try to change the cause of the match."