Oxford United marked their first Premier League Cup group fixture with a 1-0 win against former holders Swansea City.
Rev James (pictured) was the match-winner, scoring from close range after Gregor Zabret could not keep hold of Owen James's cross.
Despite pressure from Premier League 2 side Swansea, Oxford held on for victory at Thame's ASM Stadium.
Oxford lead Hull City, Wolverhampton Wanderers and Swansea in Group E.
See: Oxford report | Swansea report
Newcastle see off Notts County
Newcastle United kicked off their Group H campaign with a 2-1 win over debutants Notts County.
Elias Sorensen netted the opener before Callum Roberts' superb solo effort put Newcastle 2-0 up. Josh Bingham pulled a goal back for Notts County.
Group H's other sides, Southampton and Leeds United, meet on Friday.
See: Newcastle report | Notts County report
🎥 You can now watch highlights from last night's Premier League Cup victory over @Official_NCFC - including this Cal Roberts strike - on NUFC TV.
— Newcastle United FC (@NUFC) October 5, 2018
Watch now: https://t.co/lHZ1I4GK0a #NUFC pic.twitter.com/hP2O4YLbsx
Qualifiers Plymouth hold Derby
Plymouth Argyle earned a goalless draw against PL2 Division 1 side Derby County in Group F after going through the qualifying rounds.
Holders Aston Villa and Bristol City are the other teams in the group and they also meet on Friday.
See: Plymouth report | Derby report