A Danny Rowe brace and a Liam Mandeville header was enough for Town to overcome the Lambs at the Technique Stadium.
Rowe tapped home from six yards after 10 minutes and grabbed his second after the break from inside the area to put Chesterfield in the lead again.
Rowe then set up Mandeville for the third late on.
Our photographer Jason Chadwick took these images from the behind closed doors friendly...
Rowe then set up Mandeville for the third late on.
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