Oli McBurnie scored twice as Swansea City picked up their first Group D win, beating Colchester United 5-1 at the club's Landore training centre.
Adnan Maric and McBurnie put the Swans 2-0 up by the 19th minute but Diaz Wright pulled one back just before the break.
McBurnie, who was captain, restored the two-goal lead in the 58th minute and Courtney Baker-Richardson hit a fourth, before substitute Daniel James completed the scoring.
Swansea are on three points, three behind Newcastle United and Burnley, while Colchester have to yet to pick up a point.
See: Swansea report
Next fixtures
Swansea: 11 Dec v Man Utd (H) PL2
Colchester: 25 Jan v Swansea (H) PL Cup
Highlights: Swansea 5-1 Colchester
#SwansU23s return to winning ways with a 5⃣star #PLCup victory.
— Swansea City AFC (@SwansOfficial) December 7, 2017
📺 HIGHLIGHTS ➡️ https://t.co/QvRkzJOySj pic.twitter.com/j9n3PQMOXX