Gremio director Adalberto Preis has said big-money offers for star players Luan and Walace are expected in January.
Paris Saint-Germain have been linked with striker Luan, while midfielder Walace is also reportedly attracting interest from a number of clubs.
Speaking with Lance! in Brazil, Preis conceded that the Porto Alegre giants will soon be in no position to reject bids for the pair.
"This is not a secret to anybody -- Luan and Walace interest everyone," Preis said. "Gremio have made huge efforts...