Gary Neville has insisted striker Romelu Lukaku makes Chelsea 'serious title challengers' as the £98million summer signing makes his first start against Arsenal.
The Blues bought former player Lukaku back to Stamford Bridge from Inter Milan earlier this month for a near-nine figure fee.
And Neville believes the Belgian forward is exactly 'that piece of the jigsaw' the club needs for a Premier League title push, shortly before his second Chelsea debut, in a London derby at the Emirates on Sunday afternoon.
He said: 'I do expect him to play.