Former PKR Youth chief Ezam Mohd Nor is prepared to contest against his former mentor Anwar Ibrahim if a by-election is called for the Kulim-Bandar Baru parliamentary seat.
However, Ezam conceded that his chances of winning as a Barisan Nasional (BN) candidate would be slim given the "political and economical" factors in the country at the moment.
"I will be the underdog but what is important is that I have the courage to fight him till the end," he said.
Ezam had served as Anwar’s political secretary when the PKR de facto leader was deputy prime minister prior to his unceremonious sacking in 1998.
He was also a staunch supporter of the opposition stalwart but left PKR last year and since then has been on the offensive against Anwar.
Ezam joined Umno two months ago.