Swansea boss Francesco Guidolin has confirmed the club are close to bolstering their ranks with a new defender.
TOP tier sides West Brom and Watford were humbled by League One opposition.
All the stats from Peterborough United (1) vs (3) Swansea City, ABAX Stadium, 23rd August 2016 Att: 4,727
A slick Swans side, featuring four men who starred at Wembley when they lifted the trophy in 2013, sailed through a second-round test courtesy of a first-half super show.
Striker Oliver McBurnie scores twice on his debut as Swansea City beat Peterborough in their EFL Cup second-round tie.
Team line-ups and match updates as Swansea City begin their League Cup campaign in the second round at Peterborough United
Swansea goalkeeper Kristoffer Nordfeldt has committed his future to the club after signing a new four-year contract.
Hal Robson-Kanu will decide on his future after the transfer deadline has passed with Hull, Burnley and Swansea all keen on a deal.