That is the verdict of ESPN FC pundit and former Chelsea midfielder Craig Burley.
Morata had a difficult second-half of the season last term after his initial £58million move from Real Madrid.
He has scored just three goals in 24 appearances for Chelsea in 2018, failing to find the net in the opening day win at Huddersfield last Saturday.
Burley is backing his former side, as long as their star striker turns up.
“I think so, I think they’re strong enough,” Burley said of Chelsea.
“Dependant on how Morata plays, that’s a big if.
“We saw (N’Golo) Kante getting forward last week, he’s not playing the holding role because Jorginho is playing there.
“Will David Luiz play in a back four against better teams? That’s a question mark.
“But I think if Chelsea’s big players turn up, I think they’re too strong for this Arsenal team.”
Arsenal lost their first game of the Unai Emery era 2-0 to Manchester City on Sunday.
And Burley is looking forward to seeing how the Gunners get on against a team who are not the reigning champions.
“I’m looking forward to getting a good perspective on both teams,” he added.
“I thought Chelsea had a very good start to the season away from home, but it was Huddersfield.
“I want to look at Arsenal from a perspective that is you can’t judge them on the City game because City are going to do that to a lot of teams.
“So in the second weekend of the Premier League season, it’s more of a judgement call on both teams.
“I think we’re going to learn a little bit more about both teams.
“I think Chelsea have the stronger squad in terms of quality, I don’t think there is any doubt about that.”