“The Croat will pen his contract on Wednesday night and lead Mes against Sepahan in the Iran Professional League (IPL) on Friday,” said Abdolreza Borhaninejad.
Mes sits 13th in the IPL table with 19 points.
Bonacic was previously coach of Iranian Sepahan and Foolad and Al-Nasr of the UAE. He led Sepahan to be the runner-up of 2007 AFC Champions League.