Photography by Simon O'Connor
Brighton & Hove Albion U23’s will join the O’s in Group G, along with League One sides Charlton Athletic and AFC Wimbledon.
The group features two of Orient’s opponents from the EFL Trophy last season – with Charlton Athletic this time taking the place of Southend.
Group G
AFC Wimbledon
Charlton Athletic
Leyton Orient
Brighton & Hove Albion U23’s
More information on the fixtures will be released in due course, as will the ways in which you can live stream the ties.