Their third 1-0 win in a row sees Dons move four points clear of the relegation zone, with Leko taking the headlines for his strike following his three-match ban.
But with a number of great performances during the win at Stadium MK, here’s how we rated the players.
1. Jamie Cumming - 6
His quietest game for a while, barely troubled all afternoon Photo: Jane Russell
2. Dean Lewington - 7.5
Another assured showing from the skipper, who adds an air of calm to everyone around him Photo: Jane Russell
3. Tennai Watson - 7.5
Continues to look more comfortable in the centre-back role mopping up and keeping Morecambe at arm's length Photo: Jane Russell
4. Jack Tucker - 8
A great performance again in Dons' third straight clean-sheet. Won his aerial battles, put his body on the line and limited Morecambe to next to nothing. A close runner for man of the match Photo: Jane Russell