Former Chelsea striker Tore Andre Flo is impressed by Alvaro Morata this season.
The 24-year-old Morata is expected to return from injury and lead the attack against Roma in the Champions League on Wednesday night.
Compared to Manchester City's 29 Premier League goals, Chelsea have managed 13 with six of them from the 58-million pound striker.
"Morata is a very good striker and the challenge for Chelsea is to keep him fit. Chelsea will definitely miss him when he's not playing, when he's injured," Flo said.
"If we can keep him fit and he can play a lot of matches then he will score a lot of goals."
Belgian Michy Batshuayi has failed to impress as a back-up to Morata but Flo pleaded for more time for Chelsea's new signings.
"Chelsea got quite a few players but if you look at some of the other clubs too that have bought a lot of players.
"If we give little bit of time, I think the players that Chelsea bought will start doing a good job for the team.
"I don't think Chelsea have a problem in front of goal. Batshuayi has shown he can score goals and Chelsea can use him a back-up for Morata."