Fiorentina's Adem Ljajic was set to sign for Roma on Wednesday in a deal that would pave the way for the capital club's highly-rated forward Erik Lamela to move to Tottenham.
ANSA news agency said Ljajic, who had also been courted by AC Milan, had arrived in Rome on Wednesday morning where he was welcomed by a group of Roma supporters, to whom he responded 'Forza Roma' (Go Roma).
The highly-rated Serb is expected to sign for the Giallorossi after undergoing a medical at the club.
Reports in several Italian newspapers said Lamela, an Argentinian who holds a Spanish passport, would be allowed to leave Roma for Spurs if Ljajic put pen to paper at the Olympic Stadium.
Despite spending a month out injured during last season, Lamela scored 15 times in 33 games for Roma to finish as Serie A's joint-fifth scorer and his club's second behind Pablo Osvaldo (16).
Roma missed out on European competition this season after finishing sixth in Serie A and losing the Italian Cup final to Lazio.