After watching his Aston Villa team-mates plug away for over an hour, it took Ollie Watkins just seven minutes to get the job done.
Up until then, this was not how Unai Emery had planned it. With their Champions League quarter-final second leg against Paris Saint-Germain just days away, many of the big guns he will need to overturn a two-goal deficit were still out there, using up their energy, unable to break down a stubborn Southampton side.
Once Emery made the changes, everything changed.