Chelsea maintained their 100 percent start in beginning their Europa League adventure with a victory, but Maurizio Sarri wants his side to be closer to perfection as they resume Premier League play Sunday with a London derby at West Ham United.
The Blues (5-0-0), who lead the Premier League on goal difference over Liverpool, kicked off play in the second-tier continental tournament with a 1-0 victory at Greek side PAOK on Thursday. Willian's goal in the seventh minute stood as the match-winner with Chelsea dominating the proceedings, but the lack of finishing beyond the Brasil international's goal left Sarri pondering his attacking options going forward.
"We were in control of the match for 90 minutes," Sarri told Chelsea's official website. "We had a lot of opportunities, we missed them, so I am really happy with the three points and the performance but not the result, because when it is time to kill the match, we have to kill the match."