But, at the other moments, when we are not able to press in the other half, we are in trouble.
Chelsea threw away a two-goal advantage at the end of the first half in the London derby but managed to claim the three points thanks to Marcos Alonso's late victor. "It's good that the team is playing well so it's easy to adapt but I'm still out of rhythm since I've just joined the squad".
Chelsea's new coach Maurizio Sarri has offered mixed assessments of Morata's performances since taking charge in July, admitting in preseason that he was still waiting to see the best version of his first-choice striker.
Chelsea FC, though, secured three points with 10 minutes of normal time to play after substitute Eden Hazard teed up Marcos Alonso to score the victor at Stamford Bridge.
Sarri admitted his side suffered a "horrible" 15 minutes which could have cost them dear.
Chelsea have made clear to Ruben Loftus-Cheek that he will have opportunities to make his mark in the first team at Stamford Bridge this season and have reiterated their reluctance to sanction another loan move in what remains of the European transfer window.
Under the tutelage of Maurizio Sarri, Chelsea are definitely going to try to clinch the Premier League title and they have a formidable armoury to meet their ambitions for the ongoing campaign. "We need to continue, to press and press and press in the other half, otherwise we will have a problem".
"We want to defend by looking only at the ball".
Chelsea is looking unsafe in attack under Sarri but open at the back.
Both sides tightened up after the break, but Sarri had the trump card when he introduced Hazard in the final quarter for a match-winning cameo. Now I can attack the space, I can play one touch and go in the area for the crosses.
"First of all I'm happy about the win and that's the most important thing", he said after the game.
Eden Hazard started on the bench for Chelsea again on Saturday, but came on in the second half with devastating impact.
'Everybody knows what I have said after the World Cup, ' Hazard told French station RMC.