Former Australia captain Steve Waugh feels that David Warner has been playing in "second gear" and is yet take "the ferrari for a spin" in this ongoing World Cup.
Warner has so far hit two fifties and a century but Waugh says the explosive opener is yet to reach his destructive best in this World Cup and the semifinals will be the right platform for him to "test the engine out".
"What's daunting for teams yet to face Australia is the notion that Warner hasn't yet taken the Ferrari for a spin on the freeway," Waugh wrote in a column for the ICC.
"He has been idling away in second gear waiting for the right moment to put the foot down. Perhaps the semi-finals will be the occasion to test the engine out."