Chelsea do not have a player like Robert Lewandowski who can make the difference in front of goal, according to Antonio Rudiger, who admires the Bayern Munich forward for his insatiable hunger to score week in, week out.
The Blues have relied heavily this season on the talents of 22-year-old frontman Tammy Abraham, who returned to the club last summer after a successful loan spell at Aston Villa.
Abraham has hit 15 goals in 32 appearances across all competitions, but has only just returned to action following an injury lay-off.
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Frank Lampard only has Michy Batshuayi and Olivier Giroud to call upon in reserve, with the former struggling to live up to expectations and the latter set to leave the club when his contract expires this summer.