Two goals from Will Grigg had Dons off to a great start, leading 2-0 at the interval before Conor Grant and Matt Dennis scored their second goals for the club since arriving in the summer to complete the rout.
Here’s how we rated the players at the Mazuma Stadium.
1. Top Don: Jamie Cumming - 8.5
After his clean sheet in the Cup on Tuesday, Cumming looked more determined than ever to keep Morecambe at bay. Made three brilliant saves, including a remarkable stop to deny Ryan Delaney with the score at 1-0. Photo: Jane Russell
2. Dean Lewington - 7
Held firm when Morecambe tried to put on the pressure. Never looked in any real trouble. Photo: Jane Russell
3. Jack Tucker - 7.5
Shifted out to right centre-back, looked much more at ease on the ball and defended well when Morecambe threw balls into the box Photo: Jane Russell
4. Warren O'Hora - 7.5
Led the defence from the centre again, making key tackles and blocks Photo: Jane Russell