** Olympique Lyonnais' (OL) owner Eagle Football Group EEFG.PA slides ~9%; set for the worst day since early May
** Club demoted to Ligue 2 following an administrative relegation
** On Tuesday, French football's financial watchdog DNCG announced its decision to sanction the seven-times French champions after an audit of the club's finances
** Club says it will appeal the decision immediately
** Shares tracking worst day since early May, if the losses hold
(Reporting by Leo Marchandon)
((Leo.marchandon@thomsonreuters.com))