The 17-year-old collapsed in the fifth minute of Thursday evening's FA Youth Cup preliminary round between the sides at Regatta Way - and subsequently died on Sunday.
The Pilgrims' thoughts are firmly with the Rich family at the present time - as well as all at West Bridgford FC.
United will offer any support necessary to their own young players - and staff - who witnessed Thursday's tragic incident.
The club will make no further comment at this stage and ask everybody to respect the privacy of Dylan Rich's family at this devastating time.