The Romanian, who has previously managed Sporting Lisbon, Rennes and Monaco, replaces Jean-Guy Wallemme, who was sacked in December.
Lens are currently languishing in 19th place, second from bottom of the Ligue 1 standings.
The Romanian, who has previously managed Sporting Lisbon, Rennes and Monaco, replaces Jean-Guy Wallemme, who was sacked in December.
Lens are currently languishing in 19th place, second from bottom of the Ligue 1 standings.
