CHELSEA 1-0 ZENIT Sky Sports' Paul Merson:"Lukaku is an outstanding centre-forward. He didn't have a lot to work with, he didn't have a lot of chances, but the header was special."It was hard for Chelsea. And Chelsea have earned the reputation that teams will now come to Stamford Bridge, kick off and park the bus. That's what happens when you are a top team. Chelsea will face that, l would say, in every Champions League match until the quarter-finals."