A season to forget ended on a low note as Port Vale were put to the sword at Cambridge in the final game of the season.
Manager Neil Aspin brought in defenders Callum Howe and Joe Davis but Vale’s defence was breached five times by a rampant home side.
James Gibbons’ cross rattled the crossbar before Amoo put the home side ahead on the half-hour mark. It was 2-0 three minutes later when Dunk netted.
Vale brought on youngster Mike Calveley for Howe at the break but the goals kept coming as Brad Halliday rifled in the third on 67 minutes and six minutes later Barry Corr made it 4-0. Vale brought on another youngster by handing Harry Benns his debut but Cambridge made it five on 77 minutes through Billy Waters.
Vale were restricted to a solitary Pope effort as their season ended in a whimper.
Vale: Hornby, Davis, Smith, Howe (Calveley), Gibbons, Hannant, Pugh, Tonge, Whitfield (Benns), Angus (Turner), Pope
Subs: Boot, Barnett
Attendance: 4,808 (527 visitors)