Rennes' general director Pierre Dreossi has confirmed the club are interested in striker Park Chu-Young and Hamburg winger Jonathan Pitroipa.
The club, who finished sixth in Ligue 1 last season, have lost three players already this summer with Nicolas Douchez joining Paris Saint-Germain, Sylvain Marveaux leaving for Newcastle United while veteran playmaker Jerome Leroy is also due to depart on the Bosman ruling.