The secret of success for a backup goaltender is to keep sharp by working hard in practice and be ready when called upon.

The blade is double-edged, and both sides are usually kept sharp.

If we keep sharp, we may be able to turn it to our advantage.

The blade must be kept sharp and clean, something novice users may not recognize.

Stay back close to the wall in case the tower watch returns, and keep sharp for my signal.

So those of us not in the match day squad at the moment have to keep sharp and motivated.

He just wanted someone to help him keep sharp.

I'll tell the guys on stakeout I'm leaving and to keep sharp.

I just have to remind them to keep sharp.

The steel head must have the proper temper and be kept sharp.