Romelu Lukaku could be seen remonstrating with Hakim Ziyech as Chelsea and Brighton’s players headed for the tunnel at half-time of Tuesday’s meeting at the Amex Stadium. The visitors were in front courtesy of Ziyech’s long-range strike but it had been another frustrating evening for Lukaku, something he appeared to be making known to his team-mate. The second half followed a familiar pattern, both for Lukaku, who was substituted late on having only touched the ball 18 times, and for Chelsea, who made it 13 points dropped from winning positions this season with the concession of Brighton’s equaliser. Lukaku started the season strongly, scoring four goals in his first four appearances following his £97.5m move from Inter Milan in August, but an ankle injury in October hampered his progress and the intervening months have not been straightforward. The Belgian aired his frustrations about Chelsea’s tactical approach in an interview with Sky in Italy , for which he apologised earlier...