That’s the verdict of BBC pundit Kevin Kilbane.
Costa was suspended for the 3-0 Boxing Day win over the Cherries.
But he was barely missed as Antonio Conte’s men cruised to a 12th Premier League win on the spin.
“Pedro has been excellent and himself scored a great goal ”
Kevin Kilbane on Chelsea’s star winger
Eden Hazard lead the line with Willian and Pedro in supporting roles.
And Kilane felt ex-Barcelona man Pedro made the difference.
“We were asking about penetration – where is it going to come from without Costa?” he said on Final Score.
“Well, it’s come from Pedro.
“He’s been excellent and himself scored a great goal and has been prepared to run beyond Hazard.
“It’s not Hazard’s natural game to do that but as a front three Chelsea have been fantastic.”