Nottingham Forest have been linked with a move for Spanish striker Miguel Angel Guerrero.
The Reds have made five new additions so far this summer, including bringing in front man Lyle Taylor.
Midfielders Jack Colback and Fouad Bachirou, defender Tyler Blackett and attacking midfielder/winger Luke Freeman have also joined Sabri Lamouchi’s squad.
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There have been relatively few departures from the City Ground so far, although Matty Cash is set for a £14m move to Aston Villa.
Forest have also lost forward Tyler Walker, who joined Coventry City on a permanent deal.
And, following Walker’s departure, Greek journalist Antonis Oikonomidis has claimed the club are looking to bolster their attacking ranks.
He wrote on Twitter: “According to concrete reports in Greek press, Olympiacos striker Miguel Angel Guerrero is set to join #nffc.”
Guerrero has been with fellow Evangelos Marinakis-owned side Olympiacos for the past two years, having previously been playing in his homeland for Albacete, Sporting Gijon and Leganes.
He returned to Leganes on loan for the second half of last season, where he scored once in 13 La Liga appearances.
His contract with Olympiacos is said to be due to expire in 2021.
In addition to Taylor, Lamouchi also has Lewis Grabban and Nuno Da Costa as forward options going into the new season.