Rome has not proved the most fruitful of hunting grounds for the Florence side who have not tasted victory against the Giallorossi in the capital in over two decades.Luis Enrique\'s men have suffered an inconsistent second half to the season and are without a host of names for the visit of Fiorentina.South American defenders Nicolas Burdisso and Juan are unlikely to feature due to injury, while Bogdan Lobont, Leandro Greco, Fabio Simplicio, Marco Cassetti and Fabio Borini are all among those for the Giallorossi currently receiving treatment. Marquinho could start ahead of Miralem Pjanic in midfield having scored two goals in his last three games.Viola, meanwhile, have slumped alarmingly close to the relegation zone following a run of just two wins in their last 11 games. One of which came at San Siro against AC Milan, and the hero of that match, Amauri, is suspended for the visit to the Olimpico.Defensive duo Per Kroldrup and Michele Camporese are both sidelined through injury but Delio Rossi may well be able to welcome Juan Manuel Vargas back to the side after two weeks out.