McClean set the ball down and stepped back a few paces, giving himself room to deliver the ball.
Leo, meanwhile, kept moving upfield, passing the first line of Burnley's defence as though he had little interest in the restart.
That changed the shape of the home side's defensive line.
Two players glanced at Leo, while another edged away from his marker, wary that the Wigan midfielder might suddenly burst into space.
No one wanted to lose sight of him, especially with the ball about to be sent into an area where a single touch could change the game.
When the referee allowed play to restart, James McClean began his run and struck a through ball, sending it high and deep into Burnley's half.
Leo tilted his head back as he tracked its flight.
The ball descended towards a cluster of players, and one of Burnley's defenders called for his teammate to leave it as he moved underneath it.
