Utilize the input text as a context reference, choose the right relationship between Michel Platini and president from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Sepp Blatter greets Uefa president Michel Platini at the Fifa congress in Zurich in May.

Answer: position_held