Frank Lampard has insisted Southampton's tactic of allegedly ensuring one of their players always goes down to receive treatment between the 60th and 70th minute is "fair game".
The Saints have often found a second wind to punish their tired opponents at times this season, including the recent 3-2 comeback victory away at Spurs that saw them score two late goals in two minutes.
How they muster up that energy may have finally been discovered.
