Ben Chilwell and Christian Pulisic could form an "extraordinary partnership" at Chelsea, according to Pat Nevin.
Chilwell committed to a five-year contract with the Blues after completing a £50 million ($66m) move from Leicester City on Wednesday.
The England international became the third major signing of Frank Lampard's reign at Stamford Bridge, with Hakim Ziyech and Timo Werner arriving in west London from Ajax and RB Leipzig respectively earlier in the year.
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Chelsea have gone on to announce deals for Malang Sarr and Thiago Silva to complete an excellent week of business, and anticipation around the club is building steadily ahead of next month's 2020-21 opener against Brighton.