In the last two days, the Giants have started using a 40-second play clock during practice to simulate game conditions.

Its field goal unit had not yet snapped the ball as the 25-second play clock was reduced to 1.

But the ball was not snapped before the play clock expired.

After Moss was tackled, the 40-second play clock began to wind down.

A team wishing to do so would wait to snap the ball until there is one second left on the play clock.

The offense must also be mindful of the play clock.

We talk about things like the play clock, what to watch out for.

Before 2006, the play clock was 25 seconds, and it began on the signal from the referee.

The officials wait 40 seconds before starting the play clock, to give a coach a chance to throw the challenge flag.

The league also will use a slightly shorter play clock.