(Reuters) - Chelsea's returning striker Romelu Lukaku is in line to make his second debut for the club in Sunday's London derby against Arsenal, manager Thomas Tuchel said. We will try to prepare him to play against Arsenal and hopefully he can be on the pitch," Tuchel said. "N'Golo felt discomfort in his ankle on Friday. He played a little bit in pain and (on Friday) he felt it again," Tuchel said. He is in isolation and following the protocol, and that's why he could not be in the (Palace) group."
