LONDON (Reuters) -A goal by Romelu Lukaku on his second Chelsea debut and a strike by defender Reece James earned the Blues a comfortable 2-0 win at London rivals Arsenal on Sunday, their second victory in as many games at the start of the Premier League season.

An almost unstoppable Lukaku needed only 15 minutes to get off the mark for the European champions following his reported 97.5 million pounds ($132.8 million) transfer from Inter Milan, tapping in a cross played into his path by James.