Dembele claimed a hat-trick and was credited with one assist as Posh ran amok against the struggling Shrews.
Ratings key: 10 - Perfect, 9- Outstanding, 8- Very good, 7- Goood, 6-Okay, 5-Poor, 4-Very poor.
CHRISTY PYM: Very little to do apart from shout at his defenders from time to time. The best Shrewsbury efforts were blocked before reaching the goalkeeper. His distribution was generally accurate. 6
NIALL MASON: Started a League One game for the first time this season and played solidly on the left side of three centre-backs before the break and as an orthodox right-back in the second half. A very dependable defender. 7
DAN BUTLER: The occasional slip early on, but settled down to play soundly. Revelled in the extra space found in the second-half. Created a goal, denied one for himself by a fine late save 6.5
FRANKIE KENT: His very long pass created the opening goal. Shrewsbury were a threat from set pieces, but Kent made one terrific early goalline save before defending competenly for the rest of the game. 7