'Speedy' Sheedy, 17-1 (4), and Langford meet for the vacant British middleweight title at Cardiff's Motorpoint Arena in a contest originally scheduled for mid-October but, due to postponement, now takes place over a month later.
With the extra time to prepare, AJ is convinced Sheedy will come out on top and believes Langford will be shocked by his man's power.
"Sam will peak at the right time and it couldn't have worked any better. Everything's gone against Tommy with the change of opponent [Langford was originally slated to face Chris Eubank Jr], and Sam's a southpaw who now has an extra four weeks training. I know whose camp I'd rather be in, let's put it that way!