Germany forward Werner, who has scored eight goals in 20 games for Chelsea in all competitions since he joined them from Bundesliga side RB Leipzig in the close season, has failed to find the back of the net in his last eight starts.
“That’s the period Timo is in, it’s unfortunate but he’s getting in the positions - when one (goal) goes in it will be a run for him,” Lampard told the BBC.
“Tammy and Oli (Giroud) both bring different things, Tammy did his thing today and that’s what we needed. West Ham are a good team on good form, so many threats, I thought today would be a tough match and it proved to be so, even in the not beautiful moments we defended superbly - Thiago Silva did brilliantly with that".