Current FIFA President Sepp Blatter and his election challenger Mohamed bin Hammam are stepping up their rivalry by seeking support from European football leaders.
Blatter and Asian Football Confederation President Bin Hammam have accepted longstanding invitations to attend the UEFA Congress.
The 53 nation meeting opens on Tuesday and will give UEFA President Michel Platini a second four term term unopposed.
Europe's football agenda was overshadowed by world events when Qatar's Bin Hammam confirmed last Friday that he would try to end Blatter's 13 year hold on the game's most powerful job.
UEFA members make up more than one quarter of the maximum 208 FIFA voters that Blatter and Bin Hammam will attempt to woo, before a June 1 election in Zurich.