Brighton secured a 3-0 win over League One side Forest Green Rovers to reach the third round of the Carabao Cup.
Albion boss Graham Potter made 11 changes from the side that beat West Ham 2-0 on Sunday.
Potter's starting line-up possessed an average age of only 22.
Summer signing Deniz Undav - making his first start - put the Premier League side in front when he slotted home at the near post.
Steven Alzate doubled Brighton's advantage on the stroke of half-time with a left-footed finish.
17-year-old Ferguson wrapped up a comfortable victory for the Seagulls with a stoppage-time flicked finish.