London - On a frenzied, big-scoring night in the League Cup, Jermain Defoe's hat trick settled Sunderland's nine-goal thriller as Premier League teams were given a rough ride by lower-league opponents on Tuesday.
Defoe's treble in a 6-3 win over Exeter compensated for defensive gaffes which allowed the fourth-tier side to draw level at 3-3 at half time.
"I am totally unhappy with the goals we gave away at this level," Sunderland manager Dick Advocaat said. "I never had the feeling they would beat us."
There were eight goals at Aston Villa. Scott Sinclair's treble ensured the hosts ousted fourth-tier Notts County 5-3 in extra time after it finished 3-3 at the end of 90 minutes.
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Watford was Tuesday's only second-round Premier League casualty, with second-tier Preston winning 1-0. Miguel Britos was sent off on his debut for Watford, which is still searching for its first win after returning to the Premier League.
West Bromwich Albion and Stoke only advanced to the third round by winning on penalties.
After being held 0-0 by Port Vale, West Brom beat the third-tier side 5-3 in the shootout. Stoke edged fourth-tier Luton 8-7 on penalties after being held 1-1 over 120 minutes.
The third round, when the Premier League teams involved in European competitions enter, should offer more drama with two derbies: Tottenham-Arsenal and Aston Villa-Birmingham.
Here is a look at the other Premier League teams in action on Tuesday, with Defoe not the only hat trick scorer.
THIRD ROUND DRAW
Following Tuesday's draw, the games involving Premier League teams in the third round in the week commencing September 21:
Aston Villa v Birmingham
Crystal Palace v Charlton
Fulham v Stoke
Hull v Swansea
Leicester v West Ham
Liverpool v Carlisle
Manchester United v Ipswich
MK Dons v Southampton
Newcastle v Sheffield Wednesday
Norwich v West Brom
Preston v Bournemouth
Reading v Barnsley or Everton (who play Wednesday)
Sunderland v Manchester City
Tottenham v Arsenal
Walsall v Chelsea