New Chelsea signing Pierre-Emerick Aubameyang to add vital firepower to side's forward line

Mateo Kovacic has tipped “proven goalscorer” Pierre-Emerick Aubameyang to add vital firepower to Chelsea’s forward line. Aubameyang could make his Chelsea debut in Tuesday’s Champions League Group E opener at Dinamo Zagreb. The 33-year-old ex-Arsenal striker joined Chelsea in a £10million deadline-day deal from Barcelona, but has had to cope with a broken jaw suffered during a home invasion.