The Hoops striker revealed Rodgers' promise after last night's draw with Astana.
Celtic's Leigh Griffiths
The Hoops battled back to draw with FK Astana last night and making the team hard to beat was apparently the Northern Irishman’s first mission after taking the reins.
Celtic manager Brendan Rodgers
“Had we been better on a couple of occasions with the final pass (against Astana), we could have scored more," said Griffiths.
“The manager said from the first day that he came in that he was going to make us more compact and hard to beat. If we keep playing the way we did in the second half, we will be hard to beat. Like I said, they didn’t create much clear cut, but we had a threat.”
Celtic showcased their resilience in a tricky encounter in Kazakhstan last night and did well to weather the Astana storm and take an advantage back to Parkhead.
Celtic's Efe Ambrose
Rodgers’ mission to improve his side’s solidity has been hampered by a centre-back crisis, yet despite the difficult situation, Celtic ground out a result.
Griffiths meanwhile, enjoyed a fantastic season with the Hoops last term – scoring 38 goals in 43 appearances – and he has started this campaign in much the same vein.
Celtic's Moussa Dembele in action
Moussa Dembele’s arrival last month threatened to knock Griffiths off his perch as Celtic’s main man but early signs suggest he has no intention of passing the mantle.
The former Fulham man hasn’t made the impact he would have liked in his first few games but should he get firing alongside Griffiths, Celtic will have a fearsome frontline on their hands.