Umno president Ahmad Zahid Hamidi has already warned BN not to sabotage itself, despite having yet to reveal its candidate for the Tanjung Piai by-election.

With less than a week before nomination day, Zahid, who is also the BN chairperson, will soon need to make a call on whether Umno or MCA will contest the seat.

He was speaking today at the launch of the coalition’s machinery for the by-election.