Ukrainian politician Vitali Klitschko says he has decided against contesting snap presidential elections in May. Addressing a congress of his UDAR (Punch) party on Saturday, the boxer-turned-politician said he would instead back the candidacy of billionaire businessman Petro Poroshenko,RFE/RL reports.

Klitschko said Poroshenko “enjoys the strongest public support.” Poroshenko announced late Friday that he would stand in the presidential race.

Parliament called the early election -- scheduled for May 25 -- after voting to oust President Viktor Yanukovych in February, following three months of antigovernment protests.

Former Prime Minister Yulia Tymoshenko, who was Yanukovych's chief political rival, has also announced she plans to run again for president.

Candidates have until April 4 to register.