As Manchester United piled more and more second-half pressure onto a flagging Villarreal defence, Ole Gunnar Solskjaer would have loved to have introduced some fresh legs from his subs bench.
His opposite number Unai Emery was able to make five changes during normal time, ensuring his solid and well-organised team was refreshed and held firm.
But when Solskjaer looked behind him at the United dug-out, he clearly saw nobody capable of dragging his team over the line to glory.
It wasn't until the 100th minute - 10 into extra time - that he finally moved to replace Mason Greenwood with Fred.